This series of caches was inspired by the excellent Indiana Benchmarking series. I am adding to the Ohio series started by Folboter JAF. The caches highlight benchmarks in Ohio. Each cache will bring you close to a loggable benchmark ... so each find can be a two-fer or in this case a threefer!!!
You may find a bookmark list of the Ohio series at Ohio Benchmark-Friendly Geocaches.
The cache is a simple micro and the benchmarks are metal rods inside of a protective pipe that are marked by a waypoints on this cache page.
The benchmark can be logged using:
http://www.geocaching.com/mark/details.aspx?PID=AH3458
http://www.geocaching.com/mark/details.aspx?PID=AH3470
You can also find the benchmark by clicking on the Find... all nearby benchmarks located at the bottom of the cache page.