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historicalmarkerproject/markers/HM1CWI_a-plain-of-volcanoes_Arco-ID.html
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 th…
historicalmarkerproject/markers/HM1CWH_wheres-the-volcano_Arco-ID.html
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 eart…
historicalmarkerproject/markers/HM1C7R_devils-orchard-trail_Arco-ID.html
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 s…
historicalmarkerproject/markers/HM1C7Q_north-crater-lava-flow_Arco-ID.html
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.
historicalmarkerproject/markers/HM1C7P_north-crater-flow-trail_Arco-ID.html
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 movi…
historicalmarkerproject/markers/HM1C7N_get-over-it_Arco-ID.html
"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 encourages non-nativ…
historicalmarkerproject/markers/HM1C7K_just-down-the-road_Arco-ID.html
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, plop, and flow onto the sur…
historicalmarkerproject/markers/HM1C7I_vanishing-landmark_Moore-ID.html
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 toda…
historicalmarkerproject/markers/HM1C6W_prehistory-and-recent-history_Arco-ID.html
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 toward Fo…
historicalmarkerproject/markers/HM1C3P_lost-river_Arco-ID.html
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…
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