Survey benchmarks are used to mark a precisely measured elevation point. Hikers reaching the top of a mountain are often rewarded by finding a benchmark left by surveyors in the past. This spring, a class of GIST students taking SSI 587 (GPS/GIS Field Techniques) at the Wrigley Marine Science Center, installed their own benchmark at…
Read more
Students Install Survey Benchmark at Wrigley Marine Science Center
![](https://spatial.usc.edu/wp-content/uploads/2014/06/DSCN7839-200x150.jpg)