Hells Canyon National Recreation Area
National recreation area on the borders of the U.S. states of Oregon and Idaho.
Each edition grades its towns against each other only.

Visits to Nez Perce National Historical Park run to about 344K a year. All of it lies outside: 3 places within 40 miles, none inside Sweetwater. They include a stadium & arena, a national historical park and a garden. A drive of 55 mi brings you to Hells Canyon National Recreation Area.

Multi-state U.S. National Historic Park.
The towns around it, and where to stay →
On the map, most of the 3 sit to the northwest.
Orange: Sweetwater. Numbers: the best-known places, matching the list below. © OpenStreetMap contributors
Its 6 places all lie within 60 miles.
National recreation area on the borders of the U.S. states of Oregon and Idaho.
Multi-state U.S. National Historic Park.
Arboretum and botanical garden.
Ranked by how many people look them up, so the famous places lead and the local favorites follow.
Parks and trails in Sweetwater → · Sweetwater’s history →
Hells Canyon National Recreation Area: X-Weinzar, CC BY-SA 2.5 · Martin Stadium: Jdubman, CC BY-SA 3.0 · Nez Perce National Historical Park: NPS, Public domain