1. Designating the California National Historic Trail and Pony Express National Historic Trail As Components of the National Trails System Author/Creator: United States. Congress. House. Committee on Interior and Insular Affairs Publication/Creation: Washington : [s.n.], 1991 Resource Type: Book Access & Availability: Loading
2. Designation of the American Discovery Trail As a Study Trail Author/Creator: United States. Congress. Senate. Committee on Energy and Natural Resources Publication/Creation: Washington : [s.n.], 1992 Resource Type: Book Access & Availability: Loading
3. Designation of the Old Spanish Trail for Inclusion in the National Trails System Author/Creator: United States. Congress. Senate. Committee on Energy and Natural Resources Publication/Creation: Washington : [s.n.], 1995 Resource Type: Book Access & Availability: Loading