On Thu, 3 Mar 2011, Tom Russo wrote:
This is true of State Plane Coordinate Systems in NAD27, but not UTM.
Tom, That looks famililar.
FWIW, it looks like since your lat/lons are specified at such low precision, the NAD27/NAD83 datum shift might be irrelevant.
I decided to use the lat/lon because no datum is applicable until it's projected.
Of course, the *best* way to determine the datum would be to query the agency that produced the data...
Er, ... I don't think they'd know. Considering the state of the flat file (an Access table), and the lack of completeness of some attributes (such as depth to bedrock), I'll go with what I have. And, these data originated with the folks who dug the wells so ... Thanks, Rich _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
