Geologic map of the Northumberland Pass area, Toquima Range, Nevada, by Kenneth S. Coles, 1989.

Geologic map of the Northumberland Pass area with correlation column; showing 17 geologic units and structure; three cross sections; on topographic base; with short explanatory text and bibliography.

Regional geology is discussed in B99A.

Open-File Report 89-2, 4 pages, 11x8.5", 2 plates: plate A, 1: 24,000, geologic map, 29x36", b/w; plate B, 1:24,000, geologic cross sections, 18x44, b/w, $29.20