There is a whole book of USGS topographic symbols (from 1961) available: https://hdl.handle.net/2027/uiug.30112070112047

I see "Tel" for telegraph or telephone lines. There's a "T" listed for telegraph office, but that wouldn't make sense in a line like that.

On Mon, Jan 20, 2020 at 10:04 PM David Hodnefield <[log in to unmask]> wrote:

Howdy folks.

 

I have a client who is trying to figure out what the symbol “T” means on a USGS topographic map (see below).  The map is from 1940 and I don’t see any interpretation of it on the USGS key of symbols (https://pubs.usgs.gov/gip/TopographicMapSymbols/topomapsymbols.pdf).  My suspicion is a transmission or telephone line, but that’s only a guess.  Thanks for your help.

 

 

   

 

David Hodnefield

President

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952-253-2004 ext 111

 

Historical Information Gatherers (HIG)

www.historicalinfo.com/fimo/

 

 

 

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Ryan Mattke

Map & Geospatial Information Librarian

Head, John R. Borchert Map Library

Adjunct Faculty, MGIS Program

Project Lead, Big Ten Academic Alliance Geospatial Data Project

Co-Director, Mapping Prejudice Project

 

Phone: 612.624.5757

Web: http://www.lib.umn.edu/borchert

ORCID: http://orcid.org/0000-0001-8816-9289

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Ryan Mattke
Map & Geospatial Information Librarian

Head, John R. Borchert Map Library
Adjunct Faculty, MGIS Program
 
Phone: 612.624.5757
Web: http://www.lib.umn.edu/borchert
ORCID: http://orcid.org/0000-0001-8816-9289