Grimes Point, on U.S. Highway 50 east of Fallon, Nevada, is a field of basalt boulders glazed in glossy black desert varnish — and many of them are covered with pecked and carved petroglyphs. Managed by the Bureau of Land Management, the Grimes Point/Hidden Cave Archaeological Site lets visitors view the rock art along a short self-guided trail. It is one of the most accessible ancient rock-art sites in the Great Basin, a meaningful stop for RV travelers crossing central Nevada.
Best season — Spring and fall (cooler high-desert temperatures)
At a glance
The facts worth checking before you roll out
Conservative, source-minded facts for planning your visit — always worth confirming against current conditions before you travel.
State
Nevada
Managing agency
Bureau of Land Management (Carson City District)
Interpretive trail
1/4-mile self-guided trail
Trail distinction
Named Nevada's first National Recreation Trail in 1978
Historic listing
National Register of Historic Places, 1972
Access
Turnout on U.S. Highway 50, east of Fallon
On the ground
The boulders here are coated in a glossy black patina called desert varnish, and ancient people pecked and carved images through that dark surface to make the petroglyphs you can still see today. A quarter-mile self-guided interpretive trail — built by the Youth Conservation Corps and named Nevada's first National Recreation Trail in 1978 — leads past examples of the rock art.
Just beyond Grimes Point, Hidden Cave was formed roughly 21,000 years ago by the waves of Pleistocene Lake Lahontan and was listed on the National Register of Historic Places in 1972. The cave can only be entered on a scheduled BLM tour, not on your own.
This is a fragile, irreplaceable cultural place. The BLM asks every visitor to stay on the trail and, in its own words, to 'take nothing but photographs' — please do not touch, chalk, create rubbings of, or otherwise damage the petroglyphs. The oils on our hands and any contact can permanently harm rock art that has survived for thousands of years.
For RV travelers, Grimes Point is an easy, dignified introduction to Great Basin rock art — a place to slow down, read the interpretive signs, and leave it exactly as you found it for the generations who come after.
Official sources
- Bureau of Land Management — Grimes Point/Hidden Cave Archaeological Site Bureau of Land Management
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Planning an RV trip near Grimes Point Petroglyphs: A Respectful RV Traveler's Guide?
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