Description: This dataset at 1:24,000 scale is a greatly expanded version of the hydrologic units created in the mid-1970's by the U.S. Geological Survey under the sponsorship of the Water Resources Council. The WBD is a complete set of hydrologic units from new watershed and subwatesheds less than 10,000 acres to entire river systems draining large hydrologicunit regions, all attributed by a standard nomenclature. Development of the Watershed Boundary Dataset started in the early 1990's and has progressed to the format and attributionthat is now being distributed. The delineation and attribution was done on a state basis using a variety of methods and source data. Each state HU dataset has gone through an extensive quality review process to ensure accuracy and complianceto the Federal Standard for Delineation of Hydrologic Unit Boundaries (http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/water/watersheds/?cid=nrcs143_021630) before and during submittal to USDA-NRCS National Geospatial Management Center (NGMC).
FCode: Coded Values:
[53700: Area of Complex Channels]
ID: 398
Name: Lock Chamber
Domains:
Resolution: Inherited
Elevation: Inherited
FCode: Coded Values:
[39800: Lock Chamber]
ID: 454
Name: Special Use Zone
Domains:
Resolution: Inherited
Elevation: Inherited
FCode: Coded Values:
[45400: Special Use Zone]
, [45402: Special Use Zone: Special Use Zone Type = Dump Site; Operational Status = Abandoned]
, [45401: Special Use Zone: Special Use Zone Type = Dump Site; Operational Status = Operational]
, ...2 more...
ID: 455
Name: Spillway
Domains:
Resolution: Inherited
Elevation: Inherited
FCode: Coded Values:
[45500: Spillway]
ID: 362
Name: Flume
Domains:
Resolution: Inherited
Elevation: Inherited
FCode: Coded Values:
[36200: Flume]
ID: 343
Name: DamWeir
Domains:
Resolution: Inherited
Elevation: Inherited
FCode: Coded Values:
[34300: Dam/Weir]
, [34305: Dam/Weir: Construction Material = Earthen]
, [34306: Dam/Weir: Construction Material = Nonearthen]
ID: 485
Name: Water IntakeOutflow
Domains:
Resolution: Inherited
Elevation: Inherited
FCode: Coded Values:
[48500: Water Intake/Outflow]
ID: 307
Name: Area to be Submerged
Domains:
Resolution: Inherited
Elevation: Inherited
FCode: Coded Values:
[30700: Area to be Submerged]
Description: The 2013 Michigan Trout Lake regulations retain the original fields from the NHD 24k. Added to the dataset was the 2013 Michigan Inland Trout and Salmon Lake regulations. Field: Reg_TypeSee 2013 Michigan Fishing Guide for details.
Copyright Text: USGS, Institue for Fisheries Research, and Michigan Department of Natural Resources.