While camping is not allowed in any of the units of the monument, there are many nearby campgrounds. Some have full service amenities, some are quiet and remote, some are in the forest, and some are right on the John Day river.
John Day Regional Camping and Services Map This PDF shows the known campgrounds near the three units of the monument as well as services available in towns. Side 2 shows detailed campground information, and other services, as well as contact information for the National Park Service, Bureau of Land Management, and US Forest Service. Note that some businesses shown may not be open 7 days/wk or have limited hours or operating sesaons.
Dispersed camping is allowed on Bureau of Land Management and Forest Service lands without a permit, but it is recommended that campers obtain a map that shows current property boundaries.