Convert UTM

Converting from Universal Transverse Mercator (UTM) to decimal degrees.

Ed Bradford, 29 Jan 2018

We ran across a set of specimens that used UTM to describe their location. We used the process below to convert them.

Found the quads - note that this can be done using the search in the Texas Natural Resources Information System.

YH = Yellow Hill quadrangle
AF = Agua Fria quadrangle

Note that some of these quads have UTM grids on them which can be confusing.  Many of these are in a shorthand.  E.g. 2195 on the Yellow Hill Quad is actaully UTM coordinate 621,950.  The grid lines show 23...32.  So getting the right quad is critical - you can't just use a universal UTM converter.  See the link to TX Natural Resources Information System above.

To convert from Moore's UTM notation (e.g. 3200/5380) to decimal degrees use:

1. iPhone App "Coordinates" or
2. Liath's site for conversion or
3. ConvertUTMNoOZ

and Google or BING maps to put each point on a map to verify correctness.

The following are records in the Specify database. Record #'s without UTM info are ditto's of the previous record with UTM information.

Last edit: 14 Jul 2018