The cache is not at the posted coordinates. Please read below to solve for the correct location.
This is part of an ongoing project started by Tom.dog to place "a cache in every quad" - the 7.5-minute topographic quadrangle maps made by the U.S. Geological Survey during the 20th Century. He has focused his early caches in the series on quads within Wyoming, and Denali41 and Screechybird are contributing to the series in 7.5 minute quadrangles in Colorado. These particular maps have inspired exploration of the far-and-near reaches of the mountains, canyons, and plains of the American West. It is worth noting that Tom.dog has no realistic intention of hiding a cache within the boundary of every quad map, even with assistance! With over 55,000 such maps covering the Lower 48 alone, many of which contain no publicly accessible land, it's highly unlikely that a cache can be hidden in every quad (not to mention that life is probably too short to visit the lands illustrated in each map). Fundamentally, the objective of this project is to broaden exploration of the country in areas both familiar and unknown and to inspire fellow geocachers to do the same.
A fairly simple puzzle is provided for each cache in this project. Aside from geocaching, survey markers have been an interest of Tom.dog, Denali41, and Screechybird over the years. The puzzles are a derivative of this interest and aren't intended to be difficult, assuming that the solver has an awareness of publicly available survey mark records. We will only be referencing survey marks with adjusted coordinates - assume that the coordinates provided in the public records are spot-on due to their adjusted nature. Please also note that we are using the NAD83 position given for these survey marks to develop the puzzles, thereby making the technically false (but not egregiously incorrect) assumption that NAD83 is identical to the WGS84 datum that we use for Geocaching. There is no need to adjust anything because of our use of NAD83, nor is it necessary to physically visit any survey mark to solve the puzzle.
Potty Brown Creek:
I came across this area while looking for quads within which to hide caches this weekend, and noticed the interesting name. Potty Brown Creek runs from South to North throughout the entire length of the quad, with a slight inclination to the West. Like many of the area’s creeks, it appears to flow intermittently and has been utilized for agricultural purposes via small dams on various farms and ranches. After flowing out of this quad into the adjacent Adena quad, it joins Muddy Creek, which in turn flows into Bijou Creek. The terrain of the quad is mostly low hills and fields, typical of eastern Colorado.
The cache is a bison tube hanging on a barbed wire fence near an intersection of two public roads. Please be careful to avoid being cut while retrieving the cache!
Puzzle:
AI3097
North: +1.789
West: +4.031
Coordinate Check: NXX XX.XX7 WXXX XX.XX9