Z 220 Vertical Control - Tunnel City, WI - U.S. Benchmarks on Waymarking.com

Found on the Northern most column of the center pier under the overpass, this disk is on the South side. It's fairly easy to locate, even from a distance. The disk was placed in 1985 by NGS. Even with roadwork nearby, the disk is still in very nice shape. There is parking at McDonalds and a short walk to the site. Be very weary of cars, even though this may be the slowest area nearby. Once you get to the center traffic island you are good, but you do need to cross the road. Remember this is under I-90 so there is no need to go on the interstate.

Condition: Mark found in good condition Designation: Z 220 Benchmark Agency: National Geodetic Survey Monumentation type: Vertical Control Mark County: Monroe USGS 7.5' Topographic Quadrangle Name (optional): Tunnel City Find type: Coordinates and/or to-reach information from the NGS database (or Geocaching's copy of it) were used Web address of this benchmark's datasheet (optional): [Web Link] NGS PID: PO0470 Benchmark Agency (if other): Not listed Monumentation type (if other): Not listed Special category (optional): Not listed Special Category (if other): Not listed Local database's URL (optional): Not listed

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