Bear Valley is an old favorite close to Truckee. It is pretty easy (for Jeeps and other smallish vehicles), but it it includes some fun obstacles that are harder. The obstacles have bypass routes, so you can run the trail in a stock Jeep with no problems. The bushes encroach the trail so put on body armor if you have it.
Their research suggested that “hunting magic” could be one interpretation of the rock art at the site. With Lagomarsino’s favorable hunting location, and the rock art motifs, including mountain sheep and possible portrayals of piñon cones, they suggested that the depiction of such natural objects may have been intended to invoke their presence or increase their numbers.