Saturday, October 31, 2009

Understanding Graphical Locator


The Environmental Statistics Group at Montana State University hosts a very powerful online tool called the Graphical Locator. It’s a cross between a gazetteer and a coordinate utility converter. Some of its features are
  • A map of the United States that shows coordinate information when you click a location. You can zoom in on regional and state maps. (The maps only show geographic features, not feature names.)
  • Coordinate conversion utilities for latitude and longitude, UTM, and township, range, and section.
  • Extensive information on selected locations, including latitude and longitude; township, range, and section; UTM; elevation; state and country; nearest named features and distances; and USGS 7.5 minute topographic map name.
The Graphical Locater is designed to work with locations within the United States. It’s fairly easy to use; its author, D.L. Gustafson, has extensive online documentation on the utility. I use the Graphical Locator for quickly getting rough latitude and longitude coordinates of a location. Because there are no place names on the online maps, I consult a paper map with place names to zero in where I want to get location information if I’m unfamiliar with the terrain.
To check out the Graphical Locator, visit www.esg.montana.edu/gl.

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