SLATE MOUNTAIN TRAIL #128
SLATE MOUNTAIN TRAIL #128 View of San Francisco Volcanic Field from Slate Mountain There are a couple of curious things about Slate Mountain. First off, there�s no slate and second, the mountain is much bigger than it appears. Stansbury cliff-rose shrubs grow to 8 feet high Part laccolith (a mushroom-shaped blob of magma that formed underground) and part volcano (you know: BOOM), the 8215-foot mountain measures only 853 feet from its base to summit, but geologists estimate that the lava dome that makes up the mountain extends to 5000 feet below the surface. Cliff-rose scents the trail So, all things considered, Slate Mountain is a considerable beast. The complicated hill is composed mostly of a pinkish-gray igneous rock called rhyolite which is exposed along its flanks. Heading up the trail Kendrick Peak The �slate� misnomer comes from the flaky appearance of some of the sedimentary and igneous rocks that were contorted during the mountain�s eruptive phase that occurred between 1.5 and...