Manhattan Project National Historical Park
Historic Park covering Manhattan Project infrastructure in New Mexico, Tennessee, and Washington..
Each edition grades its towns against each other only.

The best-known day out from Irrigon is Manhattan Project National Historical Park, 48 mi away. All of it lies outside: 2 places within 40 miles, none inside Irrigon. They include a canyon & gorge and a garden.

Large water gap of the Columbia River through basalt anticlines in the U.S. state of Washington.
The towns around it, and where to stay →
The map ends at Wallula Gap, 28 mi out.
Orange: Irrigon. Numbers: the best-known places, matching the list below. © OpenStreetMap contributors
All of it lies within 60 miles: 5 places.
Historic Park covering Manhattan Project infrastructure in New Mexico, Tennessee, and Washington..
National Historic Site of the United States.
Large water gap of the Columbia River through basalt anticlines in the U.S. state of Washington.
Ranked by how many people look them up, so the famous places lead and the local favorites follow.
Parks and trails in Irrigon → · Irrigon’s history →
Manhattan Project National Historical Park: Unknown, Public domain · Whitman Mission National Historic Site: National Park Service, Public domain · Wallula Gap: Williamborg, Public domain · Tamástslikt Cultural Institute: Decumanus at English Wikipedia, CC BY-SA 3.0