1. The geology of the Fort Riley Military Reservation and vicinity, Kansas Author/Creator: Hay, Robert, 1835-1895, author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1896 Resource Type: Book Access & Availability: Loading
2. A geological reconnaissance in southwestern Kansas Author/Creator: Hay, Robert, 1835-1895, author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1890 Resource Type: Book Access & Availability: Loading