For Oregon OHV parks like TSF, Sand lake, ect... All you need is the Oregon OHV sticker. Its good for all OHV parks in Oregon. Cost $10.50 and is good for two years. Also its required year round and cops do check, ive been check a couple time.
93 YJ I6 5spd
My YJ Build +1.5 inch SOA ,37 12.50 15R Swamper M16's, 5.22:1/2.97:1 Stak Tcase with 92 Crawl Ratio
Welcome to Oregon... Not as restrictive as Commiefornia. Make sure you stop by one of the dirt bike/quad shops and grab a flag stick
If you want to run the dunes. If you are up towards the mountains you need to pick up a snow park pass if you plan on using the parking lots or parks up in the Cascades.