Here is a section from a 1957 topo map of a location I want to get permission to search. Does anyone know what these ovals and hashmarks represent on a topo map????? I tried looking up the symbols for topo maps and didn't see these on the icons. Any map specialsists on here????
Robbie
author of "Find More Silver Coinshooting Parks and Schools" by Robbie Morin
contributor to- Camp Logan: Houston, Texas 1917-1919-by Louis Aulbach, Linda Gorski and Robbie Morin
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Fisher F5 & F70 & Garrett Pro Pointer
2005-2015 clad total--$2,631.68
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