Curtis Canyon on back side of National Elk Refuge
This is a nice little campground close to Jackson, WY, that is much quieter than campgrounds in Teton National Park. It has 12 sites for tents or smallish RVs. No hookups. It's open mid-May through mid-Sept. Most sites are tucked into the trees, but walking 50 yards to the dirt road gives an unparalleled view of the Teton range. From the town of Jackson, follow signs to Elk Refuge (past hospital) and proceed about 10 miles to campground.