This simple R code converts GPS coordinates from Decimal Degrees or Degrees Minutes Seconds format to Northings and Eastings in UTM Zone 19. Coordinates should be entered as a .csv containing the column names "Latitude" and "Longitude" (capitalization does not matter). The code was designed primarily for use by researchers at the University of Maine working on the Penobscot River, but could be easily modified to handle other UTM Zones.