Google Earth isn't going to be able to help that situation. You may be able to use the history data to find a picture when the pits are at a lower level, but that's about it.
I got access to some gravel pits recently and I know one is supposed to be 65 ft deep. Hoping to figure it out with google earth but not the most computer savy. (lol). Thanks for any help here folks, Don
Google Earth isn't going to be able to help that situation. You may be able to use the history data to find a picture when the pits are at a lower level, but that's about it.
Don ... filletfetish is correct. Google Earth is only going to show you the surface features, as they are compiled pictures taken by satellite.
You "may" be able to find some geological survey maps of the area where these gravel pits are located, from a time before they were filled with water. The USGS has a website : http://www.usgs.gov/pubprod/maps.html
Other than that ... a cheap depthfinder would be your next best option. IMHO
... cp
http://www.navionics.com/en/webapp
Worth looking here. The numbers within the lakes don't appear as feet, more like yards/meters but it is still more info then not: Good Luck!
"Many men go fishing all of their lives without knowing that it is not fish they are after".
-Henry David Thoreau-
If you got permission to fish it sounds like they are on private land. If so; as was mentioned before spend your time on them with a cheap depth finder.
IMO you would be wasting fishing time on the computer
X2!!!!!!!!!!!!
FISH ON