Watershed Boundary Dataset - 12 dijit - Illinois

Jul 26, 2011
Open in Map
Open in Map
Description:
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the State of Illinois. This data set consists of geo-referenced digital data and associated attributes created in accordance with the "FGDC Proposal, Version 1.0 - Federal Standards For Delineation of Hydrologic Unit Boundaries 3/01/02"(http://www.ftw.nrcs.usda.gov/huc_data.html). Polygons are attributed with hydrologic unit codes for 4th level sub-basins, 5th level watersheds, 6th level subwatersheds, name, size, downstream hydrologic unit, type of watershed, non-contributing areas and flow modification. Arcs are attributed with the highest hydrologic unit code for each watershed, linesource and a metadata reference file.
Data Provided By:
The dataset was created by the coordinated effort between the following agencies: Illinois Natural Resources Conservation Service, Illinois State Water Survey, Illinois Environmental Protection Agency, Illinois US Geological Survey Water Science Center, US Forest Service, Illinois State Geological Survey, Illinois Department of Natural Resources, Illinois Natural History Survey. Most recently the U.S. Geological Survey (USGS) in Utah, with funding and oversight provided out of the Environmental Protection Agency (EPA) Region 5, has brought the legacy dataset up to the criteria outlined in the Federal Standards for Delineation of Watershed Boundaries.
Content date:
unknown
Citation:
Online_Linkage: http://www.ncgc.nrcs.usda.gov/products/datasets/watershed
Contact Organization:
U.S. Department of Agriculture
Contact Person(s):
Use Constraints:
The distributor shall not be held liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. It is strongly recommended that this data is directly acquired from the distributor and not indirectly through other sources which may have changed the data in some way. These data should not be used at scales greater than 1:24,000 for the purpose of identifying hydrographic watershed boundary feature locations in Illinois. The NRCS should be acknowledged as the data source in products derived from these data. The Illinois Watershed Boundary Dataset is public information and may be interpreted by all organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application of the data. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions they make. The Natural Resources Conservation Service will not perform any evaluations of these maps or purposes related solely to State or local regulatory programs. Photographic or digital enlargement of these maps to scales greater than that at which they were originally delineated can result in misrepresentation of the data. If enlarged, the maps will not include the fine detail that would be appropriate for mapping at the small scale. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data from the source distributor.
Layer:
Layer Type:
Currently Visible Layer:
All Layer Options:
Layers in this dataset are based on combinations of the following options. You may choose from these options to select a specific layer on the map page.
Description:
Spatial Resolution:
Credits:
Citation:
Purpose:
Methods:
References:
Other Information:
Time Period:
Layer Accuracy:
Attribute Accuracy:
FGDC Standard Metadata XML
Click here to see the full FGDC XML file that was created in Data Basin for this layer.
Original Metadata XML
Click here to see the full XML file that was originally uploaded with this layer.
This dataset is visible to everyone
Dataset Type:
Layer Package
Tags:
illinois, huc, watershed, hydrologic unit code, hydrologic
Downloaded by 57 Members
Bookmarked by 2 Members
Included in 4 Public Maps , 3 Private Maps

About the Uploader

Conservation Biology Institute

We provide advanced conservation science, technology, and planning to empower our partners in solving the world’s critical ecological challenges