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Parks Radar reads each park's sourced crowd, hours and live waits and rates each day by how busy it will be, relative to that park's own normal. Green is a comfortable day, yellow is busy, and red means near the park's capacity.

Ratings and hours are forecasts, not official figures. Always confirm on the official park site.

Manhattan Project National Historical Park

Protected park · NM, USA

Manhattan Project National Historical Park in NM, USA. Operated by National Park Service.

Usual hours

  • Mon–Fri 9:00–16:00
  • Sat–Sun closed

From 56 published days, 2026-10-21 to 2026-12-15; community-mapped.

About

Entrance / day-use fee applies.

This park's official page lists: Store / concessions.

This park's official page lists: Visitor center.

At the park

  • Hiking trails trail

Shows and experiences

  • Ranger & guided programs

Events

  • Building America's Secret City: Guided Ranger Walk in Jackson Square [Oak Ridge, TN]
  • Tennis Court Dance [Oak Ridge, TN]
  • Ashley Pond History Walk [Los Alamos, NM] 11:30 AM–12:30 PM · Manhattan Project National Historical Park Visitor Center
  • The Women of K-25 [Oak Ridge, TN]
  • A Secret City Planned from Miles Away: Housing and Home Life in Oak Ridge During the Manhattan Project [Oak Ridge, TN] 02:00 PM–02:30 PM · This program begins outside the main entrance of the Children's Museum of Oak Ridge. The address is 461 W. Outer Dr. Oak Ridge, TN 37830.
  • Female Soldiers of the Manhattan Project: Ranger Talk in Jackson Square [Oak Ridge, TN]
  • Let’s Go Fishing [Oak Ridge, TN]
  • Manhattan Project to National Monument: A Hanford History Hike! [Tri-Cities,WA]
  • Beyond the Bomb: Stories of the Atomic Age [Oak Ridge, TN]
  • What Powered the Project?: Guided Walk Along Melton Lake Greenway [Oak Ridge, TN]
  • National Public Lands Day: Cemetery Cleanup
  • Walk Through Wheat [Oak Ridge, TN]
  • Unveiling the Unknown: Giving Voice to African American History and Legacy at Hanford [Richland, WA]
  • Enriching Uranium in Happy Valley: Guided Ranger Walk at K-25 [Oak Ridge, TN]
  • Ride with a Ranger [Tri-Cities, WA]
  • Hike Through Time [Richland, WA] 12:00 PM–02:00 PM · Candy Mountain Trailhead 71004 E 669 Pr NE, Richland, WA 99352
  • Halloween on the Home Front: Junior Ranger Pop-Up

Before you go

Limits
Tours are offered on Fridays and Saturdays through September, and reservations are required
Limits
Yes, service dogs are legally permitted anywhere in a park that visitors can go
Getting there
Manhattan Project National Historical Park is located in three states: New Mexico, Tennessee, and Washington. For more information on accessing each of these three units, visit our Directions & Transportation page.
Weather & when to go
The Manhattan Project National Historical Park has units in Hanford, WA, Los Alamos, NM, and Oak Ridge, TN. Check local weather conditions at each unit before you visit.
Visitor center
American Museum of Science & Energy
Visitor center
Bradbury Science Museum
Visitor center
Children's Museum of Oak Ridge
Visitor center
Fuller Lodge
Visitor center
Hanford Visitor Center
Visitor center
Hanford Visitor Center
Visitor center
Hanford Visitor Center
Visitor center
Hanford Visitor Center — The Hanford Visitor Center is open Monday - Friday 9:00 AM-4:00 PM. The Hanford Visitor Center is closed Wednesdays from 11:00 AM-12:00 PM. Access to the Hanford B Reactor is suspended due to major construction projects set to begin Spring of 2025. To check for updates about these tours, visit… — Take State Highway 240 North. Turn right on Logston Blvd. Building is on the right, with a red roof.
Visitor center
K-25 History Center
Visitor center
K-25 Overlook and Visitor Center
Visitor center
Los Alamos History Museum
Visitor center
Los Alamos Visitor Center

Facilities on the park map

18 bench, 2 changing table, 12 picnic area, 33 restroom, 29 visitor information, 4 water fountain.

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