21. Revised shaded relief map and controlled color photomosaic of the Thaumasia quadrangle (MC-25) of Mars Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading
22. Rock pushing and sampling under rocks on Mars Author/Creator: Moore, H. J. 1928- (Henry J.), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1978 Resource Type: Book Access & Availability: Loading