Boars Tusk
Boars Tusk is an isolated remains of a volcano within the Rock Springs Uplift in the Green River Basin of southwestern Wyoming. It has a peak elevation of and rises some above the surrounding Killpecker Creek plain and lies north of Rock Springs. The north end of White Mountain lies to the west.
Boars Tusk is an isolated remnant of a long extinct volcano associated with the Leucite Hills to the east. Heavily eroded, all that remains of the volcano is part of the erosion resistant volcanic neck which is composed of the uncommon volcanic rock lamproite. Rock samples from Boars Tusk provided an age of 2.5 MA.
