Genre/Form: Thematic maps. Scale 1:62,500 (W 115°15´--W 115°00´/N 36°15´--N 36°00´). 1 map ; 45 x 36 cm. Series: Water-supply paper (Washington, D.C.) ; 1780. Relief shown by contours. Originally published as plate 8 of Available water supply of the Las Vegas ground-water basin, Nevada, by Glenn T. Malmberg, published by the Geological Survey in 1965 as its Water-supply paper 1780. Includes township and range lines. Interior, Geological Survey
'Drawing B-617.' 'Office of Vice President, Los Angeles,California.' Accompanies: L. R. Maag letter to Thomas A. Campbell, June 15, 1953 (Box 14 Folder W26 File No. 1).