Simple Geospatial Solutions

SGS Prime COGO Version 1.2.1 released August 13, 2018.

Simple Geospatial Solutions is pleased to announce the release of SGS Prime COGO Version 1.2.1. This is a free update for Version 1.x licenses.



  • Added ability to input and display fractional feet distances.
  • Minor improvements to RPN Calculator.
  • Updated Spanish language resources.


  • Issue with Bearing to Azimuth conversions in input forms when providing invalid input.
  • Issue when solving Alignment station/offset and the vertical alignment is not defined.
  • HTML Closure Reports had incorrect end coordinates for curves.

Installation files for Version 1.2.1


Reference manual


If you have any questions or wish to report a problem, please email