Unfortunately we will be CLOSED Tuesday August 4th and Wednesday August 5th due to unforeseen facilities issues.

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.

• Monthly Public Tours
• Private Tours
• Drop-In Visits

The LIGO Exploration Center will be CLOSED from September 7th -11th.

We will be open on September 12th for our monthly Second Saturday Public Tours. We apologize for any inconvenience, and hope you will visit us another time. 

If LHO is hosting a special event, it will appear at the bottom of this page:

Upcoming Special Events at LHO: