more about the Tushar Mountains.
Meadows in nestled in the Tushar Mountains of Southern
Utah. The following is a description by my geologist
friend, Mark Milligan at the Utah Geological Survey.
Tushars are the remnants of a long succession of volcanoes
that erupted from 30 to 4 or 5 million years ago. They
are composed of a whole slew of igneous rock types including
obsidian, basalt and andesite flows, breccias, tuffs,
ash flows, and granitic intrusions. Total thickness
of these deposits exceeds 10,000 feet. Long periods
of erosion separated some of the eruption events. Many
of these volcanic rocks are rich in mineral deposits,
including ores of gold, silver, mercury, copper, lead,
zinc, uranium, manganese, iron, aluminum, and potassium.