Mount Mabel Campground is a location in the Capital Wasteland, southwest of the Dickerson Tabernacle Chapel.
A long abandoned campground, this area would've been once the go-to place for Maryland inhabitants to relax. Now, it lies disused, inhabited only raiders and the occassional yao guai or deathclaw.
The area is peppered with abandoned first aid boxes, ammunition, and miscellaneous weapon components.
Mount Mabel Campground only appears in Fallout 3.