There are numerous sites throughout the Tri-Cities that tell the Manhattan Project story that you can visit at any time. The National Park Service does not own or operate any of these sites except for our visitor center, so please check the individual sites for hours of operation.
Address2000 Logston BlvdRichland, WA 99354 Phone Number(509) 376-1647
Many of the sites and places associated with the Manhattan Project story in the town of Los Alamos can be visited year-round. The National Park Service does not manage any of these properties or facilities, save the visitor center, so please check with individual sites for additional information about when members of the public can visit. Address475 20th Street Phone Number(505) 661-6277
Many Manhattan Project sites throughout the City of Oak Ridge are open year-round. The National Park Service does not manage any of these sites with the exception of the Oak Ridge Visitor Center, located within the Children’s Museum of Oak Ridge. Please contact all other points of interest directly for more information on operating hours and admission. The Oak Ridge Visitor Center hours operate in unison with the Children’s Museum of Oak Ridge. Visitor CenterThe Oak Ridge Visitor Center operates with these standard hours: Summer Hours (June through August)10:00 am to 4:00 pm Tuesday through Saturday Winter Hours (September through May)10:00 am to 4:00 pm Tuesday through Saturday Closed: Thanksgiving, Christmas Eve, Christmas Day, New Year’s Eve, New Years Day, MLK Day, Easter Sunday, Memorial Day, 4th of July, and Labor Day Occasional unplanned closures may occur due to weather or staffing issues. Address461 W. Outer Drive Phone Number(865) 482-1942 |
Last updated: June 19, 2026