1. Major transportation facilities of the United States : January 1999 Author/Creator: United States. Bureau of Transportation Statistics Publication/Creation: [Washington, D.C.] : [Bureau of Transportation Statistics], [1999] Resource Type: Map Access & Availability: Loading
2. Map showing inventory and regional susceptibility for Holocene debris flows, and related fast-moving landslides in the conterminous United States Author/Creator: Brabb, Earl E., 1929- Publication/Creation: [Reston, Va.] : U.S. Geological Survey, 1999 Resource Type: Map Edition: Version 1.0. Access & Availability: Loading