Gallatin 10020008

This is a river reach identification and custom map demonstration program for the Gallatin River drainage (HUC 10020008). It uses the raw TIGER/LINE data, which is very limited for this purpose, as there are no upstream or downstream linkages. This addition to Graphical Locater is dependent of a better database becoming available.

This program will quickly identify the nearest river reach segment anywhere on the map, but custom maps affect only the area within the HUC. The implimentation is such that the time required for reach identification, characterization and mapping is almost independent of the amount of data involved. There are 9739 river reach segments in the area of this map.

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2000 FEB 15, last updated on 2003 SEP 05.
D.L. Gustafson,