The closest listing to Mammoth Lakes is New Shady Rest Campground, about 1 mi away. 97 places to camp sit within 50 miles, 221 within 100, and 367 within 150. Every one carries weather, wildfire proximity and a straight link to the official booking site, and the federal ones show live availability.
Federal campgrounds where the app shows how many sites are open tonight.
A lake, river or beach you can get into from camp.
No published nightly fee. Permits and day-use charges can still apply.
The listing says pets are welcome. Leash rules are on each one.
An agency document names accessible sites. The source is on each listing.
67 more in this range on Campgrounder →
94 more in this range on Campgrounder →
116 more in this range on Campgrounder →
Distances are straight-line miles from Mammoth Lakes, not drive times. Mountain roads can double them.