LIGO Hanford Observatory provides many different opportunities for members of the public to visit or tour the site. Click on the link to the type of tour you are interested in for the latest updates, additional visit requirements, and any necessary reservation forms.
If LHO is hosting a special event, it will appear at the bottom of this page:
Physical/shipping address:
127124 N Rt. 10
Richland, WA 99354
Postal address:
PO Box 159
Richland, WA 99352-0159
Other Outreach Inquiries:
Outreach Department
The LIGO Laboratory is supported by the U.S. National Science Foundation award PHY-2309200 and
operated jointly by Caltech and MIT. Any opinions, findings and conclusions or recommendations
expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.
LIGO Laboratory is member of the LIGO Scientific Collaboration.
We observe and publish science with the Virgo Collaboration
