1 ► Alabama, Elmore County, Wetumpka — Wetumpka Impact Crater —

On U.S. 231 at East South Boundary Street, on the right when traveling west on U.S. 231.

2 ► Arizona, Apache County, Chambers — Painted Desert / Finding Fossils

On Park Road, on the right when traveling west. Reported missing.

3 ► Arizona, Coconino County, Page — Dinosaur Tracks —

4 ► Arizona, Coconino County, Page — Saurischia Dinosaur Tracks —

On Lake Powell Boulevard at Navajo Drive, on the right when traveling north on Lake Powell Boulevard.

5 ► Arizona, Navajo County, Holbrook — Agate Bridge —

On Petrified Forest Road, on the right when traveling north.

6 ► Arizona, Navajo County, Shonto — Canyons in Time — Navajo National Monument —

On Arizona Route 564.

7 ► Arizona, Navajo County, Shonto — Dinosaur Footprint — Navajo National Monument —

On Arizona Route 564.

8 ► Arizona, Navajo County, Shonto — Sweathouse — Navajo National Monument —

On Arizona Route 564.

9 ► Arizona, Navajo County, Shonto — Upside-down Mountain — Navajo National Monument —

On Arizona Route 564.

10 ► Arkansas, Conway County, Winrock — Two Dominant Fossils of the Area —

Near Petit Jean Mountain Road.

11 ► California, Alameda County, Fremont, Cameron Hills — East View —

On Quema Drive at Paseo Padre Parkway, on the right when traveling east on Quema Drive.

12 ► California, Alameda County, Fremont, Cameron Hills — In Search of Fossils —

Near Via Orinda near Castillejo Way.

13 ► California, Alameda County, Fremont, Cameron Hills — Land Mammals of the Irvingtonian Age —

Near Via Orinda near Castillejo Way.

14 ► California, Alameda County, Fremont, Cameron Hills — Sabercat Historical Park — City of Fremont — Via Orinda Entrance —

On Via Orinda at Castillejo Way, on the right when traveling east on Via Orinda.

15 ► California, Alameda County, Fremont, Cameron Hills — West View —

On Quema Drive near Paseo Padre Parkway, on the right when traveling east.

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16 ► California, Alameda County, Fremont, Mission San Jose District — Sabercat Historical Park — Paseo Padre Entrance — City of Fremont —

Near Paseo Padre parkway at Quema Drive.

17 ► California, Alameda County, Fremont, Old Mission San Jose District — Sabercat Historical Park — Pine Street Entrance — City of Fremont —

On Pine Street east of Excelso Drive, on the right when traveling west.

18 ► California, Contra Costa County, Danville — Turritella Snail Bed — Fossil Snails Tell Their Story in These Rocks —

Near Wall Point Road, on the left when traveling south.

19 ► California, Contra Costa County, El Cerrito — El Cerrito Hills —

On San Pablo Avenue at Carlson Boulevard, on the left when traveling north on San Pablo Avenue.

20 ► California, Contra Costa County, Walnut Creek — Blackhawk Ranch Quarry — A Paleontological Treasure —

On Southgate Road, on the left when traveling south.

21 ► California, Humboldt County, Orick — Big Diamond — A Circus Elephant — Not a Humboldt Mastodon —

Near Redwood Highway (State Highway 101) at Hufford Road, on the right when traveling south.

22 ► California, Kern County, McKittrick — 498 — McKittrick Brea Pit —

On State Highway 58 at State Highway 33, on the left when traveling west on State Highway 58.

23 ► California, Los Angeles County, Arcadia — Cycads — Jurassic Period — 200 Million Years Ago —

Near Baldwin Avenue, 0.3 miles south of Colorado Boulevard, on the right when traveling south.

24 ► California, Los Angeles County, Los Angeles, Miracle Mile — Chester Stock, Ph.D. / Observation Pit — Hancock Park — La Brea Tar Pits —

Near Wilshire Boulevard west of South Curson Street.

25 ► California, Los Angeles County, Los Angeles, West Los Angeles — 522 — Tongva Springs — Serra Springs — Wounded Deer Springs —

Near Barrington Boulevard, 0.3 miles south of Wilshire Boulevard, on the right when traveling south.

26 ► California, Los Angeles County, Pearblossom — The Devil's Punchbowl — Department of Parks & Recreation, County of Los Angeles —

Near County Route N6.

27 ► California, Orange County, Aliso Viejo — Mixocetus Baleen Whale — Plaza de La Paz

Near Plaza De La Paz west of La Paz Road. Reported unreadable.

28 ► California, Orange County, Laguna Hills — 28 — Fossil Reef —

On Via Lomas, on the left when traveling east.

29 ► California, Orange County, Laguna Niguel — Plaza de La Paz —

Near La Paz Road at Plaza de La Paz, on the right when traveling south.

30 ► California, Orange County, Mission Viejo — Fossil — Whale Exhibit —

On Christiana Road, on the right when traveling north.

31 ► California, Orange County, Mission Viejo — Oso Creek Trail —

On Veterans Way.

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32 ► California, Orange County, Mission Viejo — Whale Fossil —

On Christiana Road, on the right when traveling north.

33 ► California, Orange County, Rancho Mission Viejo — Topanga Formation —

On Ribera just west of Ascenso Avenue, on the right when traveling east.

34 ► California, San Bernardino County, Baker — A Lost Lake —

On Zzyzx Road, 5 miles south of Interstate 15, on the left when traveling south.

35 ► California, San Francisco City and County, San Francisco, Embarcadero — 20,000 Years Ago —

Near The Embarcadero near Folsom Street, on the right when traveling west.

36 ► California, San Mateo County, Redwood City — Pleistocene Period — 2.6 Million - 11,700 Years Ago — Stanford | Redwood City —

On Broadway near Warrington Avenue, on the left when traveling west.

37 ► California, Sonoma County, Calistoga — 915 — Petrified Forest —

Near Petrified Forest Road near Porter Creek Road, on the left when traveling east.

38 ► California, Sonoma County, Calistoga — 915 — Petrified Forest —

Near Petrified Forest Road, 0.7 miles east of Porter Creek & Calistoga Roads.

39 ► California, Sonoma County, Calistoga — To Commemorate..."Petrified Charlie" —

Near Petrified Forest Road near Porter Creek Road, on the left when traveling east.

40 ► Colorado, Bent County, Hasty — Santa Fe Trail — Travelers through Time —

Near County Highway HH near County Highway 24.

41 ► Colorado, El Paso County, United States Air Force Academy — An Ancient Geologic Past — United States Air Force Academy —

42 ► Colorado, Gunnison County, Gunnison — If You Only Knew —

On U.S. 50, on the right when traveling west.

43 ► Colorado, Jefferson County, Golden — Bone Deposition —

44 ► Colorado, Jefferson County, Golden — Brontosaur Bulges —

45 ► Colorado, Jefferson County, Golden — Cretaceous Time —

46 ► Colorado, Jefferson County, Golden — Theropod Track —

47 ► Colorado, Jefferson County, Golden — Triceratops Trail —

On 6th Avenue (U.S. 6) 0.5 miles south of 19th Street, on the right when traveling north.

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48 ► Colorado, Jefferson County, Golden, Lakota Hills — Bird Track —

49 ► Colorado, Jefferson County, Golden, Lakota Hills — Palm Fronds —

50 ► Colorado, Jefferson County, Golden, Lakota Hills — Triceratops Tracks —

51 ► Colorado, Jefferson County, Morrison — Dinosaur Ridge — Designated as part of the Dakota Hogback Natural Area —

Near West Alameda Parkway, 0.1 miles west of Colorado Highway 470, on the right when traveling west.

52 ► Colorado, Jefferson County, Morrison — Front Range Foothills —

Near Plains View Road.

53 ► Colorado, Jefferson County, Morrison — Morrison Fossil Area — National Natural Landmark —

On West Alameda Parkway, 0.1 miles south of Hog Back Road (County Road 93), on the left when traveling south.

54 ► Colorado, Jefferson County, Morrison — West Alameda Parkway / Dinosaur Ridge — Works Progress Administration — 1937 —

On Hog Back Road (County Road 93) at West Alameda Parkway, on the right when traveling north on Hog Back Road.

55 ► Colorado, Jefferson County, Morrison — What is the Historical Significance of this Site? —

On West Alameda Parkway/Dinosaur Ridge, 0.5 miles south of South Rooney Road (County Road 53), on the right when traveling south.

56 ► Colorado, Las Animas County, Kim — Life at Dinosaur Lake —

57 ► Colorado, Las Animas County, Kim — The Largest Tracksite in North America —

58 ► Colorado, Las Animas County, Kim — The Site from the Sky —

59 ► Colorado, Mesa County, Colorado National Monument — The Shape of Independence —

60 ► Colorado, Mesa County, Fruita — Dinosaur Diamond — A Dual-State National Scenic Byway —

61 ► Colorado, Teller County, Florissant — Ancient Clones — Florissant Fossil Beds National Monument — National Park Service, U.S. Department of the Interior —

62 ► Colorado, Teller County, Florissant — Ancient Forest Diversity —

63 ► Colorado, Teller County, Florissant — Changes Within Habitats —

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64 ► Colorado, Teller County, Florissant — Charlotte Hill — Early Citizen-Scientist —

Near County Route 1 south of County Route 421.

65 ► Colorado, Teller County, Florissant — Dawn of the Recent Past —

66 ► Colorado, Teller County, Florissant — Delicate Impressions —

67 ► Colorado, Teller County, Florissant — Is the Trio in Trouble? — Fighting Gravity and the Weather —

68 ► Colorado, Teller County, Florissant — Just One Piece at a Time —

69 ► Colorado, Teller County, Florissant — Layers of Time —

70 ► Colorado, Teller County, Florissant — Life in the Forest —

71 ► Colorado, Teller County, Florissant — Life Zones —

72 ► Colorado, Teller County, Florissant — Making of a Monument —

73 ► Colorado, Teller County, Florissant — Reading the Rings —

74 ► Colorado, Teller County, Florissant — Stumps of Stone —

75 ► Colorado, Teller County, Florissant — The Present Touches the Past —

76 ► Colorado, Teller County, Florissant — The Role of Fire —

77 ► Colorado, Teller County, Florissant — Valley Through Time —

78 ► Colorado, Teller County, Florissant — Welcome to Florissant, the Northern Gateway to The Gold Belt Tour National Scenic Byway — There's something for everyone along the way.. —

On U.S. 24, 0.1 miles west of County Road 45, on the right when traveling west.

79 ► Connecticut, Fairfield County, Bridgeport, Beardsley Park — Chacoan Peccaries — Catagonus wagneri —

Near Noble Avenue north of Crown Street, on the left when traveling north.

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80 ► Connecticut, New Haven County, New Haven, Downtown — Othniel Charles Marsh —

Near Grove Street near High Street, on the right when traveling north.

81 ► Delaware, New Castle County, Newark, Iron Hill Park — Historic Roads of Newark, Delaware / Petrified Log from Central Delaware —

Near South Old Baltimore Pike.

82 ► District of Columbia, Washington, Northwest Washington, Adams Morgan — Zofia Kielan-Jaworowska — 1925 - 2015 — Academy of Superheroes —

On 16th Street Northwest just south of Fuller Street Northwest, on the right when traveling south.

83 ► District of Columbia, Washington, Northwest Washington, Foggy Bottom — GW's River Horse — [Lisner Auditorium] —

On 21st Street Northwest at H Street Northwest, on the right when traveling south on 21st Street Northwest.

84 ► District of Columbia, Washington, Northwest Washington, Foggy Bottom — GW's River Horse —

On H Street Northwest at 21st Street Northwest, on the right when traveling west on H Street Northwest.

85 ► District of Columbia, Washington, Northwest Washington, The National Mall — Triceratops horridus — Bronze cast of prototype, USNM 517431 —

On Madison Drive Northwest west of 7th Street Northwest, on the right when traveling west.

86 ► Florida, Alachua County, Gainesville — Florida Museum —

Near Hull Road, 0.2 miles east of Southwest 34th Street (State Road 121), on the left when traveling west.

87 ► Florida, Brevard County, Titusville — F-486 — Windover Archaeological Site —

On Windover Way at Windover Trail on Windover Way.

88 ► Florida, Hernando County, Bayport — F-788 — The Bayport Area Before Human Occupation/Bayport's First People —

Near Cortez Boulevard (County Road 550) 6.5 miles west of Commercial Way (U.S. 19).

89 ► Florida, Hillsborough County, Ruskin — Miracle at Cockroach Bay The Leisey Shell Fossils —

On Mammoth Trail, 0.2 miles south of Gulf City Road, on the right when traveling south.

90 ► Florida, Orange County, Lake Buena Vista — Cretaceous Trail —

Near Osceola Parkway west of West Buena Vista Drive, on the right when traveling west.

91 ► Florida, Orange County, Lake Buena Vista — Oldengate Bridge —

Near Dinoland U.S.A..

92 ► Florida, Orange County, Lake Buena Vista — Prehistoric Plants —

Near Epcot Center Drive east of World Drive, on the right when traveling east.

93 ► Florida, Orange County, Lake Buena Vista — Tyrannosaurus Rex — “Sue” —

94 ► Florida, Sarasota County, North Port — Little Salt Spring —

On West Price Boulevard at Hyder Terrace, on the right when traveling east on West Price Boulevard.

95 ► Florida, Sarasota County, North Port — Prehistoric Man Lived Here/Spring Was Once a Cave —

On San Servando Avenue at Ortiz Boulevard, on the left when traveling east on San Servando Avenue.

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96 ► Florida, Sarasota County, Venice — 1926 Article From "Venice News" —

On Venice Avenue.

97 ► Florida, St. Johns County, Switzerland — William Bartram Scenic Highway —

On State Road 13, on the left when traveling north.

98 ► Florida, Volusia County, Port Orange — Bongoland —

Near Old Sugar Mill Road, on the left when traveling east.

99 ► Florida, Volusia County, South Daytona — Giant Ground Sloth —

Near South Nova Road south of Reed Canal Road, on the right when traveling north.

100 ► Georgia, DeKalb County, Atlanta, Druid Hills — Lophorhothon atopus — “Crested Nose” —

Near Clifton Road, on the right when traveling east.

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