Map. USGS 2 x 1 degree topographic map - Winnemucca, Nevada. Revised 1971 version. Scale 1:250000. Not annotated with localities, but a place named "Red Hill" is marked and circled on the map., 1955 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2x1 degree topographic quadrangle - Ajo, Arizona, United States - Mexico. Scale 1:250000. Not annotated with localities., 1962 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2x1 degree topographic quadrangle - Clifton, Arizona - New Mexico. Scale 1:250000. Not annotated with localities., 1962 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2x1 degree topographic quadrangle - Douglas, Arizona - New Mexico. Scale 1:250000. Not annotated with localities., 1964 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2x1 degree topographic quadrangle - Escanaba, Michigan: Wisconsin. Scale 1:250000. 1958 edition. Not annotated with localities., 1958 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2 x 1 degree topographic quadrangle - Fort Stockton, Texas. Scale 1:250000. 1955-1956 edition; photocopy of original. Annotated with localities and measured section positions, as well as traced road routes to and from the respective localities. Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2x1 degree topographic quadrangle - Holbrook - Arizona. Scale 1:250000. Not annotated with localities., 1960 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2x1 degree topographic quadrangle - Nogales, Arizona, United States - Mexico. Scale 1:250000. 1956 Edition (limited revision 1962). Not annotated with localities., 1963 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2x1 degree topographic quadrangle - Prescott - Arizona. Scale 1:250000. 1956 Edition (limited revision 1962). Not annotated with localities., 1963 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.
Map. USGS 2x1 degree topographic quadrangle - Saint Paul, Minnesota. Scale 1:250000. 1959 edition. Not annotated with localities., 1959 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles A. and June R. P. Ross Archives, 1953-2002Locality InformationMaps.