Manhattan Project National Historical Park
Lakewood, CO Hours and Location

Learn and Explore

Since 1916, the National Park Service has been entrusted with the care of our national parks. With the help of volunteers and partners, we safeguard these special places and share their stories with more than 275 million visitors every year. But our work doesn’t stop there.

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Our Mission

The National Park Service preserves unimpaired the natural and cultural resources and values of the National Park System for the enjoyment, education, and inspiration of this and future generations. The Park Service cooperates with partners to extend the benefits of natural and cultural resource conservation and outdoor recreation throughout this country and the world.

Frequently Asked Questions

How do I obtain a park entrance pass?

Only 118 of your 417 park sites charge entrance fees. You can obtain park entrance passes by visiting a park site that charges an entrance fee. Entrance fee sites have passes available; we recommend calling a park prior to your visit. (See the park search to locate a specific park.) There are a number of entrance passes available, including park-specific passes as well as passes that offer entrance to more than 2,000 federal recreation sites in addition to the national parks (Annual, Military, Senior, 4th Grade, Access, and Volunteer passes). Learn more about the America the Beautiful – The National Parks and Federal Recreational Lands Pass.

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About this location:

National Historical Park

Operating Hours & Seasons

Oak Ridge, Tennessee

Oak Ridge Reservation bus tour is included in the price of admission to the American Museum of Science & Energy & includes: a guided tour of the X-10 Graphite Reactor, the East Tennessee Technology Park (former home to the K-25 gaseous diffusion building), and the Y-12 New Hope Center. The tour runs March to November. Dates & times vary from week to week. Contact the American Museum of Science & Energy for the latest information. Please note: Participants must be United States citizens.

Standard Hours

• Sunday:1:00 PM-5:00 PM
• Monday:9:00 AM-5:00 PM
• Tuesday:9:00 AM-5:00 PM
• Wednesday:9:00 AM-5:00 PM
• Thursday:9:00 AM-5:00 PM
• Friday:9:00 AM-5:00 PM
• Saturday:9:00 AM-5:00 PM

Los Alamos, New Mexico

While there is currently no public access to the Department of Energy facilities in Los Alamos, walking tours are available in the town of Los Alamos. The Los Alamos Visitor Contact Station is open daily.

Standard Hours

• Sunday:11:00 AM-4:00 PM
• Monday:9:30 AM-4:30 PM
• Tuesday:9:30 AM-4:30 PM
• Wednesday:9:30 AM-4:30 PM
• Thursday:9:30 AM-4:30 PM
• Friday:9:30 AM-4:30 PM
• Saturday:11:00 AM-4:00 PM

Hanford, Washington

Access to the Hanford B-Reactor is by tour only. Separate tours of the Historic Sites are also offered. In 2016, tours will be offered from April 18 through November 19. Visitors can register for these tours by internet, phone, or in person. Tours are free to the public. For more information about tours of the historic sites, visit http://manhattanprojectbreactor.hanford.gov/. For more information about tours of the historic sites, visit http://tours.hanford.gov/HistoricTours/.

Standard Hours

• Sunday:7:30 AM-4:30 PM
• Monday:7:30 AM-4:30 PM
• Tuesday:7:30 AM-4:30 PM
• Wednesday:7:30 AM-4:30 PM
• Thursday:7:30 AM-4:30 PM
• Friday:7:30 AM-4:30 PM
• Saturday:7:30 AM-4:30 PM

Additional Information View More

• Hanford, Washington Winter Schedule:
• November 20 – April 15
• Closed

Fees & Passes

Entrance Fees:

• $0.00 – Manhattan Project NHP Entrance Fee
  There is no fee to enter the Manhattan Project National Historical Park.

About

Dawn of the Atomic Age

This site tells the story about the people, events, science, and engineering that led to the creation of the atomic bomb, which helped end World War II.

Directions

The office of the Manhattan Project NHP superintendent is located in Denver, Colorado. Locations of NPS visitor centers and any other park facilities are currently being determined and will be evaluated as part of the park planning process. For directions to the Manhattan Project NHP site in Hanford, WA; Los Alamos, NM; and Oak Ridge, TN, please visit http://www.nps.gov/mapr/planyourvisit/directions.htm.

Visitor Centers

Manhattan Project NHP Visitor Center — Oak Ridge Site

The Oak Ridge Visitor Contact Station is located in the American Museum of Science and Energy. Manhattan Project NHP Interim Visitor Contact Station–Hanford Site

Located in Hanford, Washington, the Manhattan Project National Historical Park Interim Visitor Contact Station is the departure point for all tours of the B-Reactor. There are restrooms at the Interim Visitor Contact Station. Manhattan Project NHP Visitor Contact Station–Los Alamos Site

Information about visiting the Los Alamos area Manhattan Project NHP is available at the Los Alamos Visitor Contact Station.

Weather

Fees & Passes

Entrance Fees:

Manhattan Project NHP Entrance Fee – $0.00

There is no fee to enter the Manhattan Project National Historical Park.