Survey Mark - Fort Gratoit Lighthouse, Port Huron, Michigan
N 43° 00.374 W 082° 25.340
17T E 384078 N 4762488
This survey mark can be found on the SE corner of the short wall that surrounds historic Fort Gratoit Lighthouse.
Waymark Code: WMPC58
Location: Michigan, United States
Date Posted: 08/07/2015
Views: 6
This survey mark can be found on the SE corner of the short wall that surrounds historic Fort Gratoit Lighthouse.
There U.S. Army Corps of Engineers survey mark has no year or unique identifier indicated. The lighthouse and its surroundings have been recently restored so everything is in very nice condition.
The lighthouse is open to the public but is on Coast Guard property. I believe that the site (and survey mark) may only be available from 10 a.m. to 6 p.m. daily. See (
visit link) for current details on visiting and also for tours of the lighthouse if that's of interest.