Rio Grande by A. Molles Reaches of the Middle Rio Grande
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Delineations of reaches along the Middle Rio Grande vary by user groups. The Middle Rio Grande Conservancy District (MRGCD) delineates reaches according to the locations of dams along the river. In contrast, the Bosque Hydrology Group (BHG), a consortium of state and federal agencies and academia, delineates reaches and their subdivisions by geomorphic characteristics. The Middle Rio Grande Bosque Initiative uses a definition of reaches in the Middle Rio Grande Basin similar to that of the MRGCD, but also recognizes the geomorphic transition of gravels to sands that occurs between the Upper and Lower Angostura reaches.

Click on the name of each reach that follows to see maps for the Middle Rio Grande Basin and reach delineations used by the Middle Rio Grande Bosque Initiative:


 

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