No mattter what you like to ride, you'll find it at East Fort Rock.
It is the largest USFS designated riding area in the lower 48, and a lot of ppl dont know about it. There is desert, to mountains, to forest - take yer pic. the campgrounds do not have trash haul or water, but do have fire rings, tables, gravel roads, signed and marked trails, designated sites for groups and permanent potties and they are free.! AND you are only 25 miles from town. Cell phone service is spotty, but there are always rangers around with satellite phones, etc. Spark arresters are required! http://www.fs.fed.us/r6/centraloregon/recreation/cohvops/index.shtml
here's the site. plus, there's more info in 'where to ride'. let me know if you want to make the trip... it's a great time! most of the pics i've taken are out there.