There are a few short routs where you can run to the river from Trow overflow with quads and UTV as well. But it's really geared for motorcycles. But don't let that stop you from going. If you ride early you'll beat the heat.
Blackdiamond wrote:
Dirtclods wrote:
Corral Canyon is pretty cool area http://www.riderplanet-usa.com/atv/trails/info/california_10017/ride_a450.htm
Or Arrowhead http://www.riderplanet-usa.com/atv/trails/info/california_12424/ride_1c47.htm
All of these areas are patroled so you need you green sticker and you'll need to buy an adventure pass.
Or if your above a novice Kennedy Meadows: http://www.riderplanet-usa.com/atv/trails/info/california_06187/ride_07c1.htm
Kennedy meadows is dirt bike only and about 5 hours out.
Someone mentioned Borrego springs....too hot right now (wait until October-april) and must have a plated vehicle...just down the road from there is Ocotillo Wells SRVA and much better suited, wait for fall. As with Johnson Valley, Spangler Hills, Jawbone/Dove Springs....al areas to research for the Fall/winter/spring.