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1986 Map of Gillies Hill

Name: 1986 Topographic Map of Gillies Hill
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Gillies Hill and its surrounding high desert landscape are documented here as they appeared in the mid-1980s, based on earlier surveys and field checks. The terrain is defined by dramatic volcanic features like Crater Knoll and Red Knoll, alongside dry washes such as Cunningham Wash. The presence of several named water sources, including Hawks Nest Spring, Wiregrass Spring, and Fourmile Spring, indicates the critical importance of localized water in this arid environment.

Evidence of human activity is scattered across the topography, visible through several Prospects and a Gravel Pit. Notable landmarks for local history and navigation include the prominent Hogback and the broad expanse of Maple Flats. The drainage patterns are clearly mapped, showing how seasonal waters flow from Fortuna Canyon and Chokecherry Hollow toward Fields Creek and eventually Indian Creek in the south.