Welcome to the US Geological Survey Library electronic reference service! If you are a student, teacher, or researcher, you may use our e-mail reference service for assistance in finding information on geology, hydrology, cartography, biology, paleontology, environmental science and related topics. A USGS reference librarian will attempt to respond within 3 working days. The response may include an answer to your question, a list of resources that will help you find the answer, or a request for clarification. If you would like more information about our libraries' collections, browse our home page. If you would like to purchase USGS maps or publications, please contact the Earth Science Information Center (ESIC) for further information.

To e-mail your question to the library, complete the form below. Please provide all the information requested to ensure that you receive an accurate response in a timely fashion. Telephone numbers are requested in the event that further clarification of your request is needed or library staff is unable to reach you through your e-mail address.

The following fields, marked with an asterisk (*), are REQUIRED:
Name, Address, City, State, Zip Code, E-mail, Phone, and Question.