The Optical Science Laboratory is located in the J.W. Powell Federal Building on the campus of the U.S. Geological Survey (USGS) National Center in Reston, Va. Reston is located in the Washington, D.C., metropolitan area. Directions, including a site map and directions to the USGS National Center from Washington Dulles International Airport and from Ronald Reagan Washington National Airport can be found at http://www.usgs.gov/ask/.

Although we cannot endorse local businesses, we offer the following links as a starting point to help you locate lodging when you are staying in northern Virginia:

• The Washington, D.C. Convention and Visitors Association Web Site
• The Northern Virginia Worldwide Web site
• Yahoo regional directory

Please note: Visits to the Optical Science Laboratory should be arranged in advance by contacting the OSL Manager at: