We have an issue where someone mistakenly uploaded Colorado State Plane (feet)coordinates into a Garmin eTrex 10 with the correct datum but position format degrees, minutes, seconds, instead of first converting to a format that Garmins can read.
How do I reconstruct which coordinates she actually visited in the field?
The points were a ballpark of about 150 m too far south from desired location, not the whopping 60 degrees off that you would expect it to be off if it read them as lat/long? As an example, the uploaded file had point X as 478739, 448129 in state plane feet, vs. the GPS displays its coordinates as 105°15'05.0", 40°29'02.1"N. I hope someone has some insight on how to figure out the actual coordinates for the waypoints the GPS actually took her to.