Oregon State Parks offers more than 50 campgrounds across the state. While the majority of campgrounds accept reservations for campsites, some campgrounds are first-come, first-served seasonally or year-round. Note: reservations are accepted for all cabins, yurts, tepees and some special group facilities.
Here's a list of the first-come, first-served campgrounds:
North Coast
Saddle Mountain
Willamette Valley
Cascara (Fall Creek)
North Santiam
Southern Oregon
Jackson Kimball
Central/Eastern Oregon
Bates
Catherine Creek
Clyde Holliday
Cottonwood Canyon
Emigrant Springs (mix of first-come, first-served and reservable sites)
Farewell Bend (A Loop first-come, first-served. B and C Loops reservable)
Goose Lake
Hilgard Junction
Jasper Point Campground at Prineville Reservoir
Lake Owyhee (mix of first-come, first-served and reservable sites)
Minam
Red Bridge
Smith Rock (special walk-in bivouac camping)
Ukiah-Dale
Unity Lake