Look up in river distances in the Penobscot River drainage.
Allows user to input a .csv of UTM coordinates within the Penobscot River basin and calculates in-river distance (in kilometers) from the river's mouth to the locations of interest. The results are output into a new .csv file named yourfilename+RKM.csv. For the purposes of this calculator, river kilometer 0 is located at 516414E 4927755N in UTM Zone 19N, near the southwest corner of Verona Island.
...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.