STEVE ROTHER - Training
WEED FREE HAY FAQ - This is a great source of info from the BLM but the same applies to all National Forest land too.
RECREATION.GOV - Federal (USFS, BLM) Campground Reservation System Reserve up to 6 months in advance
RESERVEAMERICA - State & County Park Campground Reservation System. Some up to 9 months in advance
ORMAN'S GUEST RANCH - Crescent City, CA - Very nice horse facility with great camping area and sturdy paddocks. Located just south of town.
LONG HOLLOW RANCH - Sisters OR area. Dude ranch, cabins, RV parking, corrals for your horses.