Are you looking for single track or ATV? About 8 miles of dirt road to get from Greenhorn Summit south to Evans Flat. Not bad, but don't think it has been graded this year. There are some loops, but riding on Rancheria Rd is a no no, so it takes some doing to connect the dots out of Evans. Keysville BLM area down by Lake Isabella has some good camping areas, and you can loop the Black Gulch 4x4 road up to Evans and down either Bradshaw Ridge or the Borderline jeep trail back to Keysville. Borderline was getting pretty rough for ATV's, but bikes would love it. Several other nice one ways into the Kern River area, Freeway ridge and Greenhorn Creek Caves down by HWY 178. Also an out and back to Alder Creek and you used to be able to ride Sandy Creek fire road all the way over to Poso Park, however I think the MVU may have killed that one. There was an area just west and north of Evans Flat that I heard a week or so ago was closed because it was now a California Condor nesting area, and they are getting ready to do some logging up there that may impact some trails. Was good 2 weeks ago tho.