Oregon State Parks offers more than 50 campgrounds across the state. Twenty-eight accept reservations year-round. The others are first-come, first-served. While first-come, first-served parks don't accept reservations for campsites, they do take them for cabins, yurts, tepees and other special facilities.   Check-in time is 4 p.m. each day.

Here's a list of the first-come, first-served campgrounds:

North Coast
Saddle Mountain

Central Coast
Washburne

South Coast
Cape Blanco
Loeb (new for 2020: October - May only)

Willamette Valley
Cascadia
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