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The Montana Wetland and Riparian Framework represents the extent, type, and approximate location of wetlands, riparian areas, and deepwater habitats in Montana. These data delineate the areal extent of wetlands and deepwater habitats as defined by Cowardin et al. (1979) and riparian areas as defined by the U.S. Fish and Wildlife Service (2009). The Montana Wetland and Riparian Framework consists of features that were manually digitized at a scale of 1:4,500 or 1:5,000 from orthorectified digital color-infrared aerial imagery collected during the summers of 2005, 2006, 2009, and 2011 by the National Agricultural Imagery Program (NAIP). These data are intended for use in publications at a scale of 1:12,000 or smaller. The feature class, finalWetRip, consists of data that have undergone three rounds of internal quality assurance/quality control procedures by the MTNHP. These data have been sent to and approved by the Regional Coordinator of the National Wetlands Inventory of the U.S. Fish and Wildlife Service and are considered final.
In addition each wetland polygon is attributed with a Hydrogeomorphic (HGM)-type code modified from Tiner (2003). |