21. Chart showing lithology, mineralogy, and paleontology of the Pennsylvanian Hermosa Group at Hermosa Mountain, La Plata County, Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey Information Services Resource Type: Map Access & Availability: Loading
22. Coal resources of the Joplin 1⁰ x 2⁰ quadrangle, Kansas and Missouri Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
23. Controlled photomosaic (exaggerated color) of the Slidr Linea quadrangle (Nt-2) of Triton Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.] : U.S. Geological Survey, 1992 Resource Type: Map Access & Availability: Loading
24. Controlled photomosaic of the MTM 10102 quadrangle, Ascreaus Mons Region of Mars Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
25. Controlled photomosaic of the MTM 15132 quadrangle, Olympus Mons Region of Mars Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
26. Controlled photomosaic of the MTM -15182 quadrangle, Ma'adim Vallis region of Mars Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
27. Controlled photomosaic of the MTM -20252 quadrangle, Tyrrhena Patera Region of Mars Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
28. Controlled photomosaic of the MTM -20257 quadrangle, Tyrrhena Patera Region of Mars Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
29. Controlled photomosaic of the MTM 40317 quadrangle, northern Arabia region of Mars Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
30. Correlation and depositional analysis of oil shale and associated rocks in the Eocene Green River Formation, greater Green River Basin, southwest Wyoming Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading