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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | GISList: Convert township-range-section to coordinates |
| Date: |
11/01/2001 06:47:48 PM |
| From: |
Bryan Keith |
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Hi List,
I am expecting to receive some data (I haven't actually seen the exact
format yet) that I need to get in real coordinate space. The problem is
that data will not have coordinates, but instead will have
township-range-section (the USA public land survey system) attributes.
From there some data (most hopefully) will be broken down into quarter
section, quarter-quarter, etc. This storage format itself is not unusual.
I've seen USGS datasets with locations stored in this way. I realize that
this information cannot be converted into an exact location, but I should
be able to get a best estimate.
I am wondering what the best way will be to calculate these coordinates. I
have some ideas, but the difficulty, of course, is when you run into
odd-shaped sections. I have the sections in UTM, and I can find their x
and y min and max and calculate the quarters from there. How have others
overcome this problem?
Thanks,
Bryan
Bryan Keith
GIS Specialist
Geomega, Inc.
Boulder, CO, USA
bryan@geomega.com
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