The public is welcome to visit the USGS Library and use the collections Monday through Friday, except Federal holidays. Photo identification is required to enter most federal government buildings. Expert staff is always available to assist visitors and give informal orientations. Tours by groups can be arranged on request. Visitors may use library materials on the premises. See BORROWING for details. Photocopiers are available at all locations. The online catalog is available on the World Wide Web.
Each library has expert reference librarians available to assist with research and provide answers to reference questions received by phone, fax, or in person. To ask for reference assistance by E-mail, use the Ask a Librarian link on the Library’s home page.