US Topo Map
The USGS (U.S. Geological Survey) publishes a set of the most commonly used topographic maps of the U.S. called US Topo that are separated into rectangular quadrants that are printed at 22.75″x29″ or larger. Clay Slough is covered by the Newton, UT US Topo Map quadrant (Per Clay Slough on AnyplaceAmerica.com)
HYDROLOGY OF CACHE VALLEY, CACHE COUNTY, UTAH, AND ADJACENT PART OF IDAHO, WITH EMPHASIS ON SIMULATION OF GROUND-WATER FLOW By Kim A. Kariya, D. Michael Roark, and Karen M. Hanson
https://waterrights.utah.gov/docSys/v920/y920/y920000e.pdf
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