Topographic map. Parade NW, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1952 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561952. Topagraphy maps of South Dakota from 1952.
Topographic map. Redelm NE, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1951 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561951. Topagraphy maps of South Dakota from 1951.
Topographic map. Redelm NW, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1951 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561951. Topagraphy maps of South Dakota from 1951.
Topographic map. Ridgeview NE, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1951 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561951. Topagraphy maps of South Dakota from 1951.
Topographic map. Ridgeview NW, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1951 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561951. Topagraphy maps of South Dakota from 1951.
Topographic map. Thunder Butte, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1951 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561951. Topagraphy maps of South Dakota from 1951.
Topographic map. Trail City SW, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1951 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561951. Topagraphy maps of South Dakota from 1951.
Topographic map. Wakpala NW, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1956 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561956. Topagraphy maps of South Dakota from 1956.
Topographic map. Wakpala, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1956 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561956. Topagraphy maps of South Dakota from 1956.
Topographic map. Wakpala SW, SD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1956 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Ian G. Speden Archives, 1956-1965Maps, 1951-19561956. Topagraphy maps of South Dakota from 1956.