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“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
 
 

Paleontology Historical Markers

Impact Crater Area Effects image, Click for more information
By Mark Hilton, August 20, 2013
Impact Crater Area Effects
Newfoundland and Labrador (Division No. 9 (North Peninsula)), Flower's Cove — Thrombolites or Living Rocks
These are critically endangered microbial structures. Thrombolites-building micro-organisms resemble the earliest form of life on Earth. These organisms were the only known form of life from 3.5 billion to 650 million years ago. These are some of . . . — Map (db m79656) HM
Newfoundland and Labrador (Division No. 9 (North Peninsula)), Sally's Cove — Green PointCambrian-Ordovician Boundary / La limite Cambrien-Ordovicien
English: In 2000, the global stratotype for the boundary between the Cambrian and Ordovician systems was designated here at Green Point by the International Commission of Stratigraphy. It is located within a bed of shale and limestone . . . — Map (db m79654) HM
Ontario (Toronto, Municipality of Metropolitan), Toronto — William Arthur Parks 1868-1936
The first Director of the Royal Ontario Museum of Palaeontology, Parks was born in Hamilton and educated at the University of Toronto, from which he received a Doctorate in 1900. Initially known as an expert on "stromatoporoids", a unique group of . . . — Map (db m83663) HM
El Salvador, San Salvador — The American HippopotamusEl Hipopótamo Americano
Toxodonte o Hipopotamo americano Mixotoxodon larensis Se originaron en Sur America y logran llegar hasta el sur de Mexico cuando se consolida el puente centroamericano, que origino el gran intercambio biótico centroamericano, hace unos tres . . . — Map (db m93000) HM
El Salvador, San Salvador — The Giant SlothPerezoso Gigante
Perezoso Gigante Eremotherium laurillardi Este mamifero se extinguio hace unos 10 mil años por causas que aun se desconocen, pero se cree que tuvo mucho que ver el cambio climático que produjo la ultima glaciación. Se originaron en Sur America y . . . — Map (db m93014) HM
Nicaragua, León, La Paz Centro — Momotombito IslandLake Xolotlán
Isla Momotombito: Estratovolcán de 350 msnm. cono apagado de basalto. La isla fue llamado por los indígenas "Cocobolo", por la abundancia de ñámbares fue un santuario arqueológico precolumbino. La composición de flora: Bosque latifoliado bajo . . . — Map (db m93654) HM
Alabama (Elmore County), Wetumpka — Wetumpka Impact Crater
The ridges located here are the remnants of a six-mile diameter circular feature created some 85 million years ago by an estimated 1,000-foot diameter asteroid. The area at the time of impact was a shallow sea. The ridges consist of a variety of . . . — Map (db m67939) HM
Arizona (Apache County), Chambers — Painted Desert / Finding Fossils
The colorful mesas, buttes, and badlands before you compose a natural work of art--the Painted Desert. Wind and running water cut these features from the Chinle Formation deposited over 200 million years ago when this area was a vast inland . . . — Map (db m72925) HM
Arizona (Coconino County), Page — Dinosaur Tracks
The imprints were made by a one ton, twenty foot long, meat-eating dinosaur. The slab of sandstone came from a nearby side canyon. When Dilophosaurus tracked through the silt 170 million years ago, this was a different landscape. Shallow streams . . . — Map (db m40326) HM
Arizona (Coconino County), Page — Saurischia Dinosaur Tracks
These tracks were made by a three-toed dinosaur known as a Saurischia therapod. It lived here about 170 million years ago during the Jurassic era when the environment was tropical. The footprints are raised natural sandstone castings of the . . . — Map (db m40321) HM
Arizona (Navajo County), Holbrook — Agate Bridge
Centuries of scouring floodwaters washed out the arroyo, or gully, beneath this 110-foot (34 meter) petrified log to form Agate Bridge. The stone log, harder than the sandstone around it, resisted erosion and remained suspended as the softer rock . . . — Map (db m68872) HM
Arizona (Navajo County), Shonto — Canyons in TimeNavajo National Monument
The maze of canyonlands stretching before you is the continuing work of millions of years of powerful and pervasive geological forces. Water scours and down-cuts channels in the soft sandstone plateau. The process is augmented by forces of . . . — Map (db m71515) HM
Arizona (Navajo County), Shonto — Dinosaur FootprintNavajo National Monument
Footprints of a small dinosaur that walked on his hind legs. About 180 million years ago, he left a lasting signature by walking through the mud. The print then filled with sediment, and both print and cast (upside-down here) eventually turned to . . . — Map (db m71516) HM
Arizona (Navajo County), Shonto — SweathouseNavajo National Monument
This miniature forked-stick hogan without a smoke hole is actually a highly effective bath — an ancient solution to the problem of keeping clean in a land where water is scarce. Here’s how it works: Stones are heated in a fire, then . . . — Map (db m71517) HM
Arizona (Navajo County), Shonto — Upside-down MountainNavajo National Monument
Hidden away in Tsegi Canyon’s wilderness of bare rock, sand, and sparse vegetation are surprising pockets of luxuriant growth. Betatakin Canyon—home to a village of prehistoric cliff-dwellings farmers—is one of these oases. Fir Canyon, . . . — Map (db m71514) HM
California (Contra Costa County), El Cerrito — El Cerrito Hills
. . . — Map (db m94102) HM
California (Contra Costa County), Walnut Creek — Blackhawk Ranch QuarryA Paleontological Treasure
The Blackhawk Ranch fossil quarry is located south of Rock City on the lower slopes of Mount Diablo. During the Late Miocene, approximately 9-10 million years ago, this region was a rolling lowland. It represented the first evidence of emergence of . . . — Map (db m93648) HM
California (Kern County), McKittrick — 498 — McKittrick Brea PitCalifornia Historical Landmark
Located one-eigth mile west of here is ancient asphaltum seepage in which hundreds of Pleistocene (15,000 - 50,000 years ago) birds and animals were trapped. Site first explored in 1925 by the University of California, with excavation completed in . . . — Map (db m42707) HM
California (Los Angeles County), Los Angeles — Chester Stock, Ph.D. - Observation PitHancock Park — Rancho La Brea
Panel 1: Chester Stock, Ph.D. January 28, 1892 - December 7, 1950 Paleontalogist Chief curator of science - Los Angeles County Museum Chairman of the Division of Geological Sciences California Institute of Technology who, encouraged . . . — Map (db m51436) HM
California (Los Angeles County), Los Angeles — 522 — Tongva Sacred Springs
Home of the Gabrielino Tongva People — Map (db m74387) HM
California (Los Angeles County), Pearblossom — The Devil's PunchbowlDepartment of Parks & Recreation — County of Los Angeles
The hills where you stand are a part of one the world's geological wonders, The San Andreas Rift -- A great fault and earthquake zone. __________ Because of the movements along this fault zone, the pink and tan colored punchbowl rocks seen below . . . — Map (db m79148)
California (Orange County), Laguna Beach — 28 — Fossil Reef
Before you are the white limestone remains of an 18,000,000 year old tropical shell reef. Formed in a shallow bay. It contains fossils of scallops, clams, and tube worms. Mudstones of the same age, found nearby, held fossil whales and shark teeth. . . . — Map (db m50013) HM
California (Orange County), Mission Viejo — FossilWhale Exhibit
The main exhibit displays a fossil right whale skull in profile. It was recovered from the marine siltstone member of the Capistrano Formation (3.5 to 5 million years old) in the 1970's right here in Mission Viejo. It is a fossil skull from the . . . — Map (db m72036) HM
California (Orange County), Mission Viejo — Whale Fossil
Originally dedicated on June 4, 1977 by the Mission Viejo Cultural and Heritage Association. The Fossil was unearthed in the southern part of the city in 1976, and is a partial skull of a Baleen whale belonging to the Bowhead or right whale . . . — Map (db m72035) HM
California (San Bernardino County), Zzyzx — A Lost Lake
The dry lake bed before you was once part of ancient Lake Mojave. During the last ice age, a cooler and wetter climate produced the Mojave River. It flowed inland about 150 miles from the San Bernardino Mountains, until its waters became trapped . . . — Map (db m83467) HM
California (San Francisco City and County), San Francisco — 20,000 Years Ago
San Francisco was an ancient river valley were creatures who grazed and browsed and stalked their prey, left their bones. (text on the horizontal surface) 20,000 years ago you could have walked to the Farallon Islands... . . . — Map (db m92829) HM
Colorado (Jefferson County), Morrison — Dinosaur RidgeDesignated as part of the Dakota Hogback Natural Area
Designated a Colorado Natural Area in 2002, the Dakota Hogback/Dinosaur Ridge Natural Area in Jefferson County is a crown jewel of statewide, national and international importance. The Dakota Hogback/Dinosaur Ridge Natural Area exemplifies all the . . . — Map (db m80464) HM
Colorado (Jefferson County), Morrison — Front Range Foothills
You are looking out over the edges of tilted and eroded layers of sandstone and shale that lie upon much older rocks in the mountains behind you. If the eroded layers were restored to where you stand they would be more than two miles thick. The . . . — Map (db m57932) HM
Connecticut (New Haven County), New Haven — Othniel Charles Marsh
Othniel Charles Marsh Born at Lockport, N.Y. October 29, 1831. Died at New Haven, March 18, 1899 Professor of Paleontology in Yale University 1866 – 1899 President of the National Academy of Sciences 1883 – 1895 Eminent as . . . — Map (db m50917) HM
District of Columbia (Washington), Foggy Bottom — GW's River Horse — [Lisner Auditorium]
Legend has it that the Potomac was once home to these wondrous beasts. George and Martha Washington are even said to have watched them cavort in the river shallows from the porch of their beloved Mount Vernon on summer evenings. Credited . . . — Map (db m46980) HM
Florida (Brevard County), Titusville — F-486 — Windover Archaeological Site
Discovered by accident in 1982, the Windover site is a burial place of Early Native Americans who inhabited this region 7,000 to 8,000 years ago. The burials were placed underwater in the peat of the shallow pond. This peat helped to preserve . . . — Map (db m60342) HM
Florida (Hernando County), Bayport — F-788 — The Bayport Area Before Human Occupation/Bayport's First People
(side 1) The Bayport Area Before Human Occupation The fossilized remains of many prehistoric animals and plants are buried in the Bayport area. During the Eocene Period, 45 million years ago (MYA), the Gulf covered this region. . . . — Map (db m93296) HM
Florida (Orange County), Lake Buena Vista — Tyrannosaurus Rex“Sue”
This fossil cast is an exact replica of “Sue”, the most complete Tyrannosaurus Rex skeleton ever found. Named for her discoverer, Sue was found in South Dakota on August 12, 1990. Sue is 90% complete, a fossil find of enormous importance . . . — Map (db m76896) HM
Florida (Saint Johns County), Switzerland — William Bartram Scenic Highway
   Within a mile and a half of this marker are numerous prehistoric sites, several of which date from 2000 BC Native Americans occupied the Northern river section from about 4000 BC until the arrival of Europeans after 1500 AD.    Riverbank . . . — Map (db m61973) HM
Florida (Sarasota County), Venice — 1926 Article From "Venice News"
"It's a mammoth," voiced Dr. J. W. Gidley, Paleontologist of the Smithsonian Institute, 15 minutes after he first saw the fossil tusks and jaw bone of the prehistoric monster found in Venice. The size of the tusks indicates that it probably stood 14 . . . — Map (db m32747) HM
Florida (Volusia County), Port Orange — Bongoland
Several attempts were made to operate Dunlawton Plantation as a tourist attraction in the the 1950's Dr. Perry Sperber leased the premises from J. Saxon Lloyd for a park to display prehistoric monsters and had a number of replicas, molded in . . . — Map (db m34878) HM
Florida (Volusia County), South Daytona — Giant Ground Sloth
On this site in 1975 was found the best preserved and most complete giant ground sloth ever found in North America. The sloth weighed three to five tons, stood thirteen feet tall and was a vegetarian. An estimated fifty species of animals were . . . — Map (db m45449) HM
Idaho (Jerome County), Hunt — 276 — Prehistoric Hunters
Bone fragments of extinct species of ground sloth, horse, camel, and elephant found in a nearby cave mingle with weapons and radiocarbon dates from Idaho’s earliest hunters.

Archaeologists have confirmed that people camped here at least 10,000 . . . — Map (db m62963) HM

Indiana (Franklin County), Brookville — 24.1995.2 — Brookville's Carnegie Library
Dedicated in 1912, starting with approximately 600 books; collections and services have expanded to meet needs of local patrons. One of 1, 679 libraries built in U.S. with funds from philanthropist Andrew Carnegie. Indiana built more Carnegie . . . — Map (db m44694) HM
Kansas (Logan County), Oakley — The Monument RocksOne of the Eight Wonders of Kansas
Over 100 million years ago, during the cretaceous era, Kansas was covered by a vast ocean. Dramatic natural features, such as the Monument Rocks, are remains of that ancient seabed. Since the 1870s, fossil hunters have searched the chalk beds . . . — Map (db m66099) HM
Kansas (Marshall County), Blue Rapids — Gigantic GlaciersThe Monument to the Ice Age — Blue Rapids, Kansas
Huge continental glaciers, hundreds of feet thick, came from the north to northeastern Kansas in at least two different episodes carrying rocks, gravel, sand, and a special clay called loess to the Blue Rapids area. Our fertile soils and . . . — Map (db m78960) HM
Kansas (Marshall County), Blue Rapids — Ice AgeThe Monument to the Ice Age — Blue Rapids, Kansas
The age of ice made great changes in the Earth's climate. From 1.6 million to 10,000 years ago the climate chilled, glaciers formed and advanced and retreated at least twice. Advancing glaciers squeezed zones where plants, people and other . . . — Map (db m78957) HM
Kansas (Marshall County), Blue Rapids — Oldest Rocks in KansasThe Monument to the Ice Age — Blue Rapids, Kansas
The oldest rocks in Kansas can be found right here in Blue Rapids. They are called Sioux Quartzite, a metamorphosed red sandstone originally deposited as sand in riverbeds, buried, and made extremely hard by heat and pressure. This quartzite was . . . — Map (db m78958) HM
Kansas (Riley County), Manhattan — Geology at Konza

The image on this plaque depicts your view of the Konza Prairie and the Kansas River Valley. Looking from west to southwest, the view is typical of the Flint Hills in their natural state. Due west is the floodplain of the Kansas River and to . . . — Map (db m80813) HM

Kentucky (Boone County), Florence — 1253 — Boone County, 1798
Formed by legislative act from a part of Campbell County. Names for Daniel Boone, renowned Kentucky pioneer-explorer. Big Boone Lick, graveyard of the mammoth, was discovered in 1729 by Capt. M. de Longueil. In 1756, Mary Inglis was brought . . . — Map (db m61867) HM
Kentucky (Boone County), Union — Big Bone LickMarker # 1 — Pre- Historic Site in Boone County, Kentucky
Discovered in 1739, by the French Capt. Charles Lemoyne de Longueil this famous saline- sulphur spring was frequented for thousands of years byIndians and vast herds of buffalo, deer and other animals. The first English explorers found . . . — Map (db m79060) HM
Kentucky (Boone County), Union — 2124 — Big Bone Lick — Marker #2 - Marker at the Museum - with Lewis and Clark marker
Scientists consider William Clark’s dig at Big Bone Lick in 1807 as establishing American vertebrate paleontology. Bones found here by Clark included mastodon and mammoth. Prehistoric native American artifacts found were given to Dr. Wm. . . . — Map (db m79062) HM
Kentucky (Boone County), Union — 2124 — Lewis and Clark in KentuckyBig Bone Lick — ( Separate Visits by Both Explorers )
In Oct. 1803, while traveling down Ohio River to meet Wm. Clark for expedition to Pacific, Meriwether Lewis visited Big Bone Lick. He was to gather fossilized bones for Pres. Thomas Jefferson. In Sept. 1807, clark supervised a 3-week dig for . . . — Map (db m79088) HM
Maryland (Prince George's County), Laurel — Dinosaur Alley
Dinosaurs lived during most of the Mesozoic Era (235 to 65 million years ago), on every continent on Earth. In Maryland, each of three Mesozoic time periods in which dinosaurs live is represented in its geology -- Triassic, Jurassic, and Cretaceous. . . . — Map (db m67139) HM
Maryland (Prince George's County), Laurel — Dinosaurs in Maryland!
In 1842, English scientist Sir Richard Owen coined the term "dinosaur" to describe a group of ancient reptiles that inhabited the Earth from 230 to 65 million years ago. The discovery of the first dinosaur bones and the knowledge they reveal about . . . — Map (db m67193) HM
Maryland (Prince George's County), Laurel — Welcome to Dinosaur Park
A Walk Through Time As you enter Dinosaur Park you take a walk through time from the present day into Dinosaur times! Modern plants and trees give way to ginkgoes and ferns reminiscent of the early plants and tree that are fossilized here . . . — Map (db m67243) HM
Nebraska (Lancaster County), Lincoln — Mammuthus Columbi
Mammoths roamed Nebraska's grasslands for more than one million years before mysteriously disappearing between 11,000 and 10,000 years ago. These extinct relatives of today's elephants were the largest mammals ever to walk the Great Plains. Adult . . . — Map (db m54358) HM
Nebraska (Morrill County), Bayard — The Innocent Assassins
Once in the sun-fierce badlands of the west in that strange country of volcanic ash and cones, . . . we found a sabertooth, most ancient cat, far down in all those cellars of dead time.”From The Innocent Assassins by . . . — Map (db m89174) HM
Nebraska (Sioux County), Harrison — Fossil Hills TrailAgate Fossil Beds National Monument — National Park Service, U.S. Department of the Interior
The hills held ancient secrets for paleontologists. The two hills in the distance don’t look like anything special. Even up close the untrained eye will see nothing astounding. But a sandstone layer near the bases of the hills has yielded one of the . . . — Map (db m62064) HM
New Hampshire (Coos County), Lancaster — 173 — Lake Coos and the Presidential Range
Lancaster, founded in 1763, lies on the bed of glacial Lake Coos, formed as the glaciers receded 14,000 years ago. Today, the Connecticut, an American Heritage River, flows along the bottom of the ancient lake. You stand at a gateway to The Great . . . — Map (db m75697) HM
New Jersey (Camden County), Haddonfield — Hadrosaurus Foulkii
In a marl pit on the John E. Hopkins farm in October 1858, the world’s first nearly complete dinosaur skeleton was unearthed by William Parker Foulke. The find was adjacent to this point. This was also the first dinosaur skeleton to ever be mounted. . . . — Map (db m29239) HM
New Jersey (Camden County), Haddonfield — The Hasrosaurus foulkii Sculpture
Commemorates the Historic Discovery by William Parker Foulke in Haddonfield, New Jersey, 1858 Historic Fossil The 1858 find was the most complete dinosaur skeleton unearthed anywhere in the world up until that time. It was the first that . . . — Map (db m73253) HM
New Mexico (Rio Arriba County), Abiquiu — Coelophysis Quarry — Ghost Ranch
In 1881 David Baldwin discovered small fossilized bones on what is now Ghost Ranch. He mailed the bones to paleontologist Edward Drinker Cope in Philadelphia. Cope had been through the area in the late 1870s and had urged Baldwin to explore and . . . — Map (db m75212) HM
New York (Albany County), Cohoes — Cohoes Mastodon
Site of Cohoes Mastodon Found September 1866 Now in N. Y. State Museum — Map (db m40818) HM
New York (Albany County), Cohoes — The Cohoes Mastodont
The Cohoes Mastodont was discovered during the excavation for Harmony Mill #3 in 1866. The mill is sometimes referred to as the "Mastodon Mill" for this reason. When all the bones were recovered, they were kept at the Harmony Mills Office on . . . — Map (db m41622) HM
New York (Albany County), Voorheesville — Thacher Point
At this site, on September 14, 1914, this park was formally dedicated in memory of John Boyd Thacher. His widow, Emma Treadwell Thacher, donated the 350 acres to the state of New York to be preserved as a public park. The Thachers, whose summer home . . . — Map (db m77243) HM
New York (Chautauqua County), Irving — Everett R. Burmaster
1890-1965 lived in Irving. Historian, Archaeologist, Paleontologist, BMS Curator. Seneca adopted-Gahgewa. Saved Hanover Elm & Sottle Fiddle. — Map (db m64672) HM
New York (Orange County), Montgomery — Mastadon Dig 1800
1st U.S. Science expedition remains exhibited London & Amer. philosoph. Society, Philadelphia. Dig Painted by Charles W. Peale, 1810. — Map (db m49822) HM
Ohio (Lorain County), Sheffield Lake — 12-47 — Jay Terrell and his "Terrible Fish"
Around 1867, along the shale cliffs of the lakeshore of Sheffield Lake, Jay Terrell found fossils of a "terrible fish" later named in his honor as Dinichthys Terrelli. This animal, now known as Dunkleosteus terrelli, was a massive arthrodire (an . . . — Map (db m67502) HM
Ohio (Lucas County), Sylvania — 62-48 — Centennial Terrace and Quarry / Fossil Park
Side A Centennial Terrace and Quarry In 1931, the France Stone Company ceased operations. Robert Burge leased 19 acres of the site for recreational swimming and opened Centennial Quarry in 1934. Five years later, . . . — Map (db m94772) HM
Ohio (Mercer County), St. Henry — 1- 54 — The Cranberry PrairieA Geological Feature of Western Ohio
The Cranberry Prairie, southwest of this marker, is a part of Ohio's natural history. The place was named for the cranberries that grew in a swamp here prior to drainage of the area. The Cranberry Prairie was created by centuries of peat . . . — Map (db m94414) HM
Ohio (Wyandot County), Carey — 4-88 — Sheriden Cave — Ohio Historical Marker
Indian Trail Caverns, first opened in 1927, is one of many caves that occur on the dolomite ridge traversed by State Route 568 in Wyandot and Hancock counties. Sheriden Cave, a karst sinkhole associated with the caverns, was discovered in 1989. It . . . — Map (db m93656) HM
Oregon (Wheeler County), Mitchell — Fossils on the Frontier
Northern Paiute Indians and a few mountain men were the only residents of the John Day Country before 1860. Cavalry troops passed through the John Day River drainage looking for the best route from the Columbia River to Fort Boise. One company, . . . — Map (db m71675) HM
Oregon (Wheeler County), Mitchell — Painted Hills OverlookJohn Day Fossil Beds National Monument
Through this dry land in 1865 rode a pioneer minister and amateur scientist named Thomas Condon. It was the first of his many visits. Imagine his reaction when he discovered the imprints of countless fossilized leaves near these Painted Hills, . . . — Map (db m71698) HM
Pennsylvania (Crawford County), Conneaut Lake — Geology
Conneaut Lake is a kettle lake formed by the receding glacier during the last Ice Age, about 12,000 years ago. As the glacier melted, a large block of ice partially embedded in accumulated sediment formed the depression, which became the lake. . . . — Map (db m74623) HM
Pennsylvania (Crawford County), Titusville — Titusvillia Drakei Caster
In ancient seabottom rocks exposed in this stream, the Holotype Specimen of a rare fossil sponge was found by Paleontologist Kenneth E. Caster. In 1939 in recognition of the support which brought the sciences of geology and paleontology to such . . . — Map (db m64970) HM
Pennsylvania (Monroe County), Minisink Hills — Shawnee-Minisink Archaeological Site
Nearly 13,000 years old, this location, near the confluence of the Delaware River and Brodhead Creek, is one of the earliest dated Native American sites in the northeastern US. Archaeological investigations uncovered hundreds of stone tools left by . . . — Map (db m86978) HM
Pennsylvania (Philadelphia County), Philadelphia — Edward Drinker Cope
Internationally renowned vertebrate paleontologist and zoologist, Cope lived and worked here in his later years. He wrote many scientific papers describing hundreds of fossils & living animals and is famous for his long-standing feud with O.C. Marsh . . . — Map (db m82812) HM
South Dakota (Fall River County), Hot Springs — 680 — The Mammoth Site of Hot Springs, SD
Gigantic mammoths, ancestors of the majestic elephants of today, once roamed freely on the High Plains of North America. A repository of their remains, along with other kinds of animals, lay undisturbed until their discovery over 26,000 years later, . . . — Map (db m89376) HM
Texas (Brewster County), Big Bend National Park — Ancient Swamp CreaturesBig Bend National Park
Tiny horses and hippopotamus-like animals once roamed a more humid Big Bend. For a glimpse into the parks tropical past, take a short trail to the fossil bone display and the overlook beyond. — Map (db m95632) HM
Texas (Fisher County), Sylvester — 82 — Adair - Steadman Site
In this vicinity is a prehistoric archeological site discovered in 1969 near the Clear Fork of the Brazos River. Archeologists have conducted extensive scientific excavations and attribute most of the cultural materials to the Paleo-Indian Period. . . . — Map (db m81124) HM
Texas (Kendall County), Boerne — 749 — Cascade Cavern
Probably formed during the Pleistocene epoch by the underground passage of the Cibolo River, Cascade Cavern presents an interesting mix of geological, archeological,and historical features. It exhibits a combination of the joint and the dip and . . . — Map (db m46924) HM
Texas (Roberts County), Miami — 2039 — Fossil Beds(three miles southeast)
Cited as one of most prolific fossil fields of lower Pliocene age at time of discovery, these beds are about 13,000,000 years old. Geologists of Rio Bravo Oil Company found them in 1928 on C.C. Coffee Ranch, and their reports brought specialists . . . — Map (db m55797) HM
Texas (Ward County), Monahans — 3434 — Monahans Sandhills State Park and Museum
In these shifting seas of sand, rich in stone evidences of primitive men, today's visitors find flint points, sandstone metates and manos of peoples who were here as early as 10,000 years ago and late as the 1870s. Bones of great mammoths and . . . — Map (db m73307) HM
Utah (Grand County), Crescent City — Copper Ridge Dinosaur Trackway
Welcome to Copper Ridge. Here, you can see the tracks of two different dinosaurs. The larger were probably made by an Allosaurus, while the smaller three toed tracks were made by one of a number of smaller bipedal carnivorous spedies. — Map (db m39259) HM
Vermont (Chittenden County), Charlotte — The Charlotte WhaleThe Vermont State Fossil
In 1849 an 11,000 year old Beluga Whale was found north of this site in what had been the Champlain Sea. Resident J.G. Thorp collected the bones, and naturalist Zadock Thompson assembled the skeleton now displayed in the Perkins Museum of Geology . . . — Map (db m75963) HM
Vermont (Rutland County), Mount Holly — Mount Holly Railroad History
During construction of what became the Rutland Railroad, two important events occurred in Mount Holly. In 1848, a construction crew discovered the tusk and tooth of a woolly mammoth in the nearby wetland. These are on display in the Community . . . — Map (db m94276) HM
Virginia (Fairfax County), Great Falls — American Indians of the Potomac RiverRiverbend Park — Potomac River Gorge Interpretive Trail
Prehistoric people arrived along the shores of the Potomac River some 13,000 years ago. Slowly they transformed from semi-nomadic hunters into farmers and fishermen. Eventually, a group called the Nacotchtanks became the dominant tribe of the . . . — Map (db m64316) HM
Virginia (Westmoreland County), Stratford — The Stratford Cliffs
Approximately 17 million years ago, during the Miocene Epoch, these 150-foot-high cliffs along the Potomac River formed the ancient seashore. Rich Miocene fossil deposits, which exist in the 1 1/2 -mile-long series of Horsehead, Stratford and Nomini . . . — Map (db m34585) HM
West Virginia (Greenbrier County), Ronceverte — Organ Cave
In this cave, whose beautiful natural formations have long been known, salt petre was manufactured before 1835. When war broke out between the states in 1861, it was a source of powder supply for General Lee's army. — Map (db m76509) HM
Wisconsin (Rock County), Beloit — 555 — Roy Chapman Andrews
Side A Roy Chapman Andrews, one of the most celebrated explorers of the 20th century, was born in Beloit on January 26, 1884. He grew up across the river at 419 St. Lawrence Avenue. Andrews acquired a lifelong passion for the natural world during . . . — Map (db m86686) HM
Wyoming (Albany County), Medicine Bow — Dinosaur Graveyard
To the north lies Como Bluff - "The Dinosaur Graveyard" - one of the greatest and well known fossil beds of dinosaur remains in the world. There paleontologist of the 19th century discovered and unearthed many excellent fossil specimens of the . . . — Map (db m89665) HM
Wyoming (Crook County), Sundance — Paha Sapa, Black HillsGeologic History of the Lakotas' Sacred Hills
Also known as "Temple of the Sioux," Sundance Mountain rises majestically in the southwest. It belongs to the Bear Lodge Mountain Range, which defines the northwestern edge of the Black Hills. It was named for the Plains Indians' religious . . . — Map (db m45541) HM
Wyoming (Crook County), Sundance — Petrified TreesFossils Give Clues to Wyoming's Paleo-Past
Giant cypress trees growing today in swamps (or forested wetlands), such as these found in Louisiana's Pointe Lake, used to grow in Wyoming back when it was a warm, subtropical swamp - about 55 million years ago during the Late Paleocene epoch. Some . . . — Map (db m45539) HM
Wyoming (Crook County), Sundance — The Vore Buffalo JumpHunting Large Bison Took Teamwork and Ingenuity
Located a short distance to the east and camouflaged by the red eroded landscape is the Vore Buffalo Jump. This sinkhole served early residents as a slaughterhouse. using the natural pit as a trap, hunters would capture bison in late fall by running . . . — Map (db m45537) HM
Wyoming (Lincoln County), Kemmerer — Fossil Butte
Fossil Butte is a 50 million year old lakebed and one of the richest fossil resources in the world. It is part of the Green River Formation, a layer of rock composed of laminated limestone, mudstone, and volcanic ash. Complete paleo-ecosystems are . . . — Map (db m36624) HM
Wyoming (Lincoln County), Kemmerer — Kemmerer Founders MonumentWyoming's Aquarium in Stone
Kemmerer founded 1897 by Mahlon S. Kemmerer 1843 - 1925 and Patrick J. Quealy 1857 - 1930 — Map (db m80542) HM
Wyoming (Sweetwater County), Green River — All Because of an Ancient LakeTrona Trail Historic Mine Byway
The bed of prehistoric Lake Gosiute (Go-shute) lies hundred of feet below you. This ancient lake set the stage of the world's largest trona and oil shale deposits as well as a significant natural gas reserve. Lake Gosiute Creates Trona . . . — Map (db m90093) HM

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