Geology of the Okanogan Highlands 2012 - Stop 3

Stop 3: Republic City Park

Rocks passed around here were collected from the Tom Thumb mine about 5 miles north of here. These white rocks are made mostly of quartz. They are typical of gold-bearing veins in the Republic area that were precipitated from hot water circulating through cracks within the crust during volcanism and faulting in the area, about 50 million years ago.

(Intro)   (1)   (2)   (3)   (4)   (5)   (6)   (7)   (8)   (9)