One of my favorite things to look for when traveling are geological survey markers. Survey markers are objects placed to mark key survey points on the surface of the Earth.

I get a thrill seeing one on a remote mountain top, imagining the survey crew who hiked in there and placed it.

Here are some pictures I’ve collected along the way:

Pine Mountain, Georgia (note the triangle indicating this mark is used for triangulation)

Banff, Alberta

El Malpais National Monument, New Mexico

Seattle, Washington

Charleston, South Carolina

Knoxville, TN

Cadillac Mountain, Maine

rk

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