Quick Link to Topher's World Home PageQuick Link to Topher's World Geocache SiteQuick Link to USGS Benchmarks Found Page
Link to Topher's World Home PageLink to Topher's World Bronco SiteLink to Topher's World Geocaching SiteLink to Topher's World Digital Photo SiteLink to Topher's World Hobbies PageLink to Topher's World Pets PageLink to Topher's World DVD SiteLink to Topher's World Favorite Sites

USGS Benchmarks

  What is a USGS Benchmark?

Geodetic control points are permanently affixed objects at various locations all over the United States to enable land surveying, civil engineering and mapping to be done efficiently. These objects are usually metal disks, but can be any other object that serves as a control point.

Although not as popular as finding Geo Caches, Benchmark hunting can be very interesting to try and locate. The databases are mostly pre-GPS waypoints done with surveyors. They can be way off the GPS settings which make them hard to find but rewarding when you do locate them. 

The oldest ones I have found were from 1926 and looked brand new. In other parts of the country they can go back to the 1800's.   

USGS Benchmark


Benchmarks Found
. . . .