Stillwater Field Office BLM ( map link ) I passed right by Grimes Point on the way out to see the annular eclipse , which quite definitively closes my circle through Nevada that started with the Pony Express and other ruins . (There's an introduction at the Lassen overlook , but that's in California, so that doesn't count.) I wanted to stop this time because there are petroglyphs. These aren't just any petroglyphs, either. Estimated to be at least 8000 years old, they're some of the oldest in the state. There are some that are probably at least 10,500, perhaps 14,000, years old, so they're not the oldest. One of a few information signs at the highly developed Grimes Point Trailhead which includes toilets, covered picnic tables, paved road access, and more information signs. My plan for the visit was to take a turn around the interpretive trail that visits some of the petroglyphs in the area, then head up the Observation Point Trail. There were some g...