http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Preliminary geologic map of the Welches Canyon quadrangle, Nevada
1 map ; 58 x 44 cm. + 7 sections on 1 sheet (70 x 51 cm.)
Relief shown by contours and spot heights.
Miscellaneous field studies ; map MF-326