Campgrounds on national forest land, like this one near Idaho City, can be booked online at Recreation.gov. Booking windows for many sites have opened this month on a six-month rolling basis. Pete Zimowsky/Idaho Statesman/TNS
Boise—With snow blanketing the ground in the Boise area (and more in the forecast), summer camping feels like a distant thought. But it’s prime time for people to book next year’s camping sites through state and federal reservation systems, and many popular Idaho spots are filling up fast.