GPS use

[Clifford Wetmore]

        I have used a Garmin GPS 40 for several years and have been happy
with it. If you want elevation you must be sure you have 3-D location and
often you must move a little (walk a few feet) to get better resolution.
After some mistakes, I have learned that you should wait a little after
getting a location and let the unit stabilize. Don't press MARK and ENTER as
soon as it locks in. It keeps picking up more satelites and recalculates the
location. I would trust the GPS location more than the maps, but this means
the next person needs a GPS unit to relocate your place.

Cliff Wetmore
Univ. of Minnesota Herbarium