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 <https://hdl.handle.net/2027/uiug.30112070112047?urlappend=%3Bseq=80>. There's a "T" listed for telegraph office <https://hdl.handle.net/2027/uiug.30112070112047?urlappend=%3Bseq=98>, 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. > > [image: cid:image001.jpg@01D5CFBA.0C471770] > > > > > > [image: cid:image002.jpg@01D2F71A.D4FBAE40] > <http://www.historicalinfo.com/fimo/> [image: seemoreincolor] > > > > *David Hodnefield* > > *President* > > [log in to unmask] > > 952-253-2004 ext 111 > > > > *Historical Information Gatherers (HIG)* > > www.historicalinfo.com/fimo/ > > [image: LinkedIn-Logo-02] <https://www.linkedin.com/organization/2985404>[image: > facebook icon] > <https://www.facebook.com/search/top/?q=historical%20information%20gatherers%20-%20hig>[image: > twitter icon] <https://twitter.com/HistoricalInfo1>[image: youtube icon] > <https://www.youtube.com/playlist?list=PLftxFDJe-tuucvIyAujnPQa7mKcddUAED> > > > > > > > -- Ryan Mattke Map & Geospatial Information Librarian Head, John R. Borchert Map Library <https://www.lib.umn.edu/borchert> Adjunct Faculty, MGIS Program <http://cla.umn.edu/mgis> Project Lead, Big Ten Academic Alliance Geospatial Data Project <https://sites.google.com/umn.edu/btaa-gdp/> Co-Director, Mapping Prejudice Project <https://www.mappingprejudice.org/> Phone: 612.624.5757 Web: http://www.lib.umn.edu/borchert <https://www.lib.umn.edu/borchert> ORCID: http://orcid.org/0000-0001-8816-9289 -- -- 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
