Hickison Petroglyphs

Some miles down the road and over the pass from Austin are the Hickison Petroglyphs, a BLM interpretive site. Unfortunately, the pamphlets from the self-guided trail were all gone, so we just walked the trail and gathered what we could. The petroglyphs are thought to be some 10,000 years old, which is indeed impressive.

Perhaps it all looked differently 10,000 years ago or more...
water in the lakes and rivers, abundant game, little
competition, milder climate...