Lava Formations
N 43° 18.331 W 112° 16.186
12T E 397017 N 4795525
Quick Description: Historic sign located at the southbound rest area north of Blackfoot, ID
Location: Idaho, United States
Date Posted: 1/20/2008 3:05:37 PM
Waymark Code: WM30GE
Views: 44
Long Description:Lava Formations
Molten rock, forced upward from 30 to 50 miles through fissures
in the earth had cooled into the hard lava found here.
Continued pressure from below has made great cracks in the
contorted surface. This lava solidified only a few thousand years
ago, and not very much soil covers it yet. But vegetation is
getting a start, and unless new flows intervene, windblown soils
will cover thee rock layers. Then the surface here will look the
same as the surrounding plains, which also are layers of lava and
windblown soil.
Visit Instructions:
In your log, please say if you learned something new, and if you
took any extra time to explore the area once you stopped at the
historic marker waymark. If possible please post a photo of you OR
your GPS at the marker location. Also if you know of any additional
links not already mentioned about this bit of Idaho history please
include that in your log.