Enter street,city,state or zip code or lat,-lon (dd.ddd)
(for other lat/lon encodings or UTM or NAD27 use this)
Distance buttons:
left click on map to make a track
this button will popup a window from which you can save the track as a
file.gpx for uploading to your GPS.
Walnut Grove
from sinkhole digital analysis weighted centroid: 36.03965137110,-85.50512340100
Area: 2.9 km2 Perimeter: 21.2 km
Depth: 6.` m
Volume: 1048878 m3