Your card is valid at the Crescent City branch and the Smith River branch libraries.  You may also use your library card at all libraries in the North State Library Cooperative System.  These libraries include Humboldt County, Butte County, Lassen District Library, Modoc County, Orland Free Library, Plumas County, Shasta Public Libraries, Siskiyou County, Tehama County, Trinity County and Willows Public Library.  These libraries may have some restrictions and will almost certainly ask you for identification and have you fill out applications at their libraries.