The shallow arc of Idaho’s Snake River Plain spans southern Idaho, gently rising from west to east. Current theories suggest that the plain marks the path of continental movement over a deep hotspot now lying beneath the Yellowstone Plateau. As the . . . — — Map (db m71602)
Walking off trails may be destroying these spatter cones which are some of the rarest volcanic features on the face of the earth.
Photographs taken at different times demonstrate that unrestricted visitor use left these fragile volcanic cones . . . — — Map (db m80429) HM
An important page in atomic history was written here on July 17, 1955, when the lights of Arco were successfully powered from atomic energy. Chosen by the Atomic Energy Commission as an experiment in the peaceful use of atomic power, Arco, Idaho . . . — — Map (db m68916) HM
Look for lava and ice stalactites ("lavacicles" and "icicles") on the ceiling and walls of this lava tube. They were formed by dripping hot lava and melting ice. Born of fire, this cave now retains ice year-round—a cool place to visit on a hot . . . — — Map (db m92943)
Two thousand years ago, nearby volcanoes erupted so violently that they tore themselves apart. Rivers of lava floated huge chunks of crater wall down to this spot. Time passed. Rocks crumbled. The seeds of rabbitbrush and limber pine root in the . . . — — Map (db m70604) HM
“To understand the West, you have to get over the color green; you have to quit associating beauty with gardens and lawns…” Wallace Stegner.
What was drinking up 80% of the water used in this park? Lawns.
*Planting lawns . . . — — Map (db m70600) HM
The United States Submarine Force
Has lost 65 submarines and more
Than 4,027 crewmembers are still on
Final patrol since submarines became
Part of the Naval Service in 1900
It Is Well That They Should Be Remembered
1915 - USS F-4 . . . — — Map (db m103593) WM
Indian Tunnel is named for the mysterious stone circles that lie near the path to this large lava tube. Ancient stone structures are visible in many locations throughout the Monument. Archeologists believe that some of these structures may have had . . . — — Map (db m92944)
The Strangest 75 square miles on the North American continent
-Comment from an early traveler.
The landscape before you was explosively created by volcanic eruptions. Cracks in the earth’s crest allowed lava to blast, . . . — — Map (db m70597) HM
The Strangest 75 square miles on the North American continent Comment from an early traveler The landscape before you was explosively created by volcanic eruptions. Cracks in the earth's crust allowed lava to blast, plop, . . . — — Map (db m92942)
When its water is not diverted for upstream irrigation, Lost River flows past here into a sink 14 miles to the northeast.
Lava flows in the Snake River plains buried old channels of Lost River, Little Lost River, and Birch Creek. No longer able . . . — — Map (db m70448) HM
Mk 14 Torpedo
Length: 20.5 feet
Diameter: 21 inches
Weight: 3300 pounds
Range: 5500 to 9000 yards
Propulsion: Steam Turbine
The Mark 14 torpedo was introduced into the navy in 1929. The warhead contained 507 pounds . . . — — Map (db m103596) WM
Here in the path of a lava flow you can view a variety of volcanic features, now frozen in time. The trail crosses over the most recent of several successive flows that originated from the North Crater area. As you walk the path, imagine slow moving . . . — — Map (db m70602) HM
After centuries of rest, North Crater stirred once more. The old crater wall broke open and lava poured out carrying great chunks of broken wall. Again it rested. About 2000 years ago, lava flowed out for the last time. — — Map (db m70603) HM
Since 1949, more nuclear reactors – over 50 of them – have been built on this plain than anywhere else in the world.
This 900-square-mile Idaho National Laboratory is the birthplace of the Nuclear Navy. Commercial power reactor . . . — — Map (db m70447) HM
Big Southern Butte -- A Waypoint for Thousands of Years
“Just passing through, ma’ma”
The harsh conditions on the plain discouraged most long-term settlement, but Big Southern Butte was a clear waypoint. In the 1800s, travelers headed . . . — — Map (db m70573) HM
USS Hawkbill (SSN-666)
Class: (Sturgeon Variant) Sturgeon
Built At: Mare Island Naval Shipyard
Keel Laid: 12 September 1966
Launched: 2 April 1969
Christening: Mrs. Bernard F. Roeder
Commissioned: 4 February 1971
First Commanding . . . — — Map (db m103649) WM
USS S-27 (SS-132) was one of
52 United States Submarines Lost
In World War ll
S-27 was commissioned on 22 January, 1924
under command of Lt. Herbert Jukes
S-27 was lost in the early morning hours of
19 June, 1942 When she ran . . . — — Map (db m103595) WM
From this vantage point, you gaze across 25 miles of lava to Big Southern Butte. Early pioneers, following Goodale’s Cutoff from the Oregon Trail, used this land mark to navigate around the rugged lavas of the Snake River Plain. As a traveler today, . . . — — Map (db m70595) HM
Say the word volcano and usually the image flashes to mind of a single great symmetrical cone. But, the volcanic activity in Craters of the Moon National Monument and the Snake River Plain has taken a different form.
Parallel cracks in the . . . — — Map (db m71601)
John Day’s River
Fur traders named this stream for John Day, a pioneer trapper who died in the valley north of here, Feb. 16, 1820
John Day had started west with John Jacob Astor’s Pacific Fur Company that discovered Snake River . . . — — Map (db m103827) HM