What is a benchmark?
A benchmark is a point whose position is known to a high degree of accuracy and is normally marked in some way. The marker is often a metal disk made for this purpose, but it can also be a church spire, a radio tower, a mark chiseled into stone, or a metal rod driven into the ground. Over two centuries or so, many other objects of greater or lesser permanence have been used. Benchmarks can be found at various locations all over the United States. They are used by land surveyors, builders and engineers, map makers, and other professionals who need an accurate answer to the question, "Where?" Many of these markers are part of the geodetic control network (technically known as the National Spatial Reference System, or NSRS) created and maintained by NOAA's National Geodetic Survey (NGS).
Learn more at: https://www.geocaching.com/mark/
Details for Benchmark: HA0669
Just like Geocaches and Trackables, Benchmarks have their own unique ID here on Geocaching. The benchmark you will see at the published coords is Benchmark: HA0669. Did you know, you can log benchmarks and they show on your Geocaching Stats!
How to find this Geocache
From the posted coords, travel bearing 181° (south), uphill, 461 feet. Here you will find what you seek.
Geocache is placed with permission.