I've inherited some 20 year old waypoint data that was taken with a Garmin GPS. I don't recognize the lat/lon coordinates as DMS, decimal minutes, or decimal degrees. Here's one record as an example: Lat 4531.38153 Long 12347.2328. I know the very general location of this record to be Lat 45 degrees, Lon -123 degrees.
Can somebody tell me the format of these coordinates so I can convert to decimal degrees?
Best Answer
They look like Degrees Decimal Minutes (DDM) with the degree and minutes symbols dropped.
Try reading
Lat 4531.38153 Long 12347.2328
asLat 45° 31.38153' Long 123° 47.2328'
You may find this PGC Coordinate Converter useful.