Volcanic Glass
Yellowstone Plateau glowed red from volcanic activity, with molten rock welling up and spreading from numerous fissures. Obsidian Cliff, a 180,000-year-old lava flow, is part of the evidence. Cooling and shrinking, the lava solidified into large columns visible at the base of the cliff.HM Number | HM1KP9 |
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Tags | |
Marker Condition | No reports yet |
Date Added | Saturday, May 23rd, 2015 at 10:04pm PDT -07:00 |
UTM (WGS84 Datum) | 12T E 521408 N 4963434 |
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Decimal Degrees | 44.82400000, -110.72920000 |
Degrees and Decimal Minutes | N 44° 49.44', W 110° 43.752' |
Degrees, Minutes and Seconds | 44° 49' 26.4" N, 110° 43' 45.12" W |
Driving Directions | Google Maps |
Area Code(s) | 307 |
Closest Postal Address | At or near US-89, Yellowstone National Park WY 82190, US |
Alternative Maps | Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap |
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