Mortimer Gulch Campground
The numbers that decide it
Recreation.gov publishes no site-level detail for this campground, so we cannot say what length of rig it takes. Call the managing office before committing to it in a large vehicle.
Site-level detail from Recreation.gov, checked 2026-08-05. Where a field says “not published”, the agency has not published it — it does not mean zero.
Mortimer Gulch Campground
Mortimer Gulch campground is located close to Gibson Resevoir with 26 campsites available for use. Fishing for rainbow or cutthroat trout in the reservoir and in the North Fork of the Sun River is an excellent way to spend the weekend away during the summer months. It is highly recommended that a 4WD vehicle is used to reach the cement boat ramp (1/2 mile away). Bears may frequent the area; keep all food out of sight in approved containers and remove all food from area after eating. Mandatory food storage is required.
Before you go
Season
April
Reservations
Reservations accepted
Fees
$15/night for single unit & $5.00/night for an extra vehicle.
Restrictions
Please see food storage, motor vehicle use information, and fire dangers before camping.
Make it a night on a better road
Byway plans the drive in — real stops, real weather, nothing invented.