1991
Black, C. 1991. Bird observations on the Gray Ranch, Hidalgo Co., New Mexico. Compiled for the Nature Conservancy. 10 p.
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Gray Ranch
Black, C. 1991. Bird observations on the Gray Ranch, Hidalgo Co., New Mexico. Compiled for the Nature Conservancy. 10 p.
West, S. 1990. Fall 1990 report on birds of Gray Ranch. Unpubl. report for the Nature Conservancy (New Mexico Natural Heritage Program) dated 1 Aug. - 30 Nov 1990. 12 p.
Machette, M.N. et.al. 1986. Map showing quaternary and pliocene faults in the Silver City 1 degree X 2 degree quadrangle and the Douglas 1 degree X 2 degree quadrangle southeastern Arizona and southwestern New Mexico. Dept. of the Interior, U.S. Geology S
Hunt, C.B. 1978. Surficial geology of southwest New Mesico. New Mexico Bureaus of Mines and MIneral Resources, a division of New Mexico Institute of Mining and Technology.
Scott, N. 1992. Ranid Frog Survey of the Gray Ranch with Recommendations for Management of Frog Habitats. Submitted to Geoffrey Babb, Preserve Manager, Gray Ranch, NM. 18p.
Ruth, J. 2002. Burrowing owl (Athene cunicularia) occurences from Hidalgo County, NM. . 2 p.
Neville, T. 2003. Animas Foundation: DRG mosaics for U.S. & Mexico for areas contiguous to principal area of interest.
Deason, M.G. 1998. What do cows, turtles, and javelina have in common? Answer: They live together on the Gray Ranch. Clearing the Waters. Newsletter of the NonPoint Source Pollution Section New Mexico Environment Department. 4:1-3, 6-8.
Zeller, R.A. 1962. Reconnaissance geologic map of Southern Animas Mts. State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology.
Neville, T. 1999. Gray Ranch digital raster graphics (DRGs).