US Geological Survey

US Geological Survey

Cook Inlet Basin Study Unit – Lakes

nawqa_lakes is a polygon coverage of lakes greater than 20 acres that are located in the Cook Inlet National Water-Quality Assessment (NAWQA) study unit. The Cook Inlet Basin is located in southcentral Alaska. The coverage was created using 1:2,000,000 digital line graphs (DLGs). This coverage, along with other coverages of the Cook Inlet Basin, will be used to determine water-quality sampling locations.

Coverage was created by Alaska Department of Natural Resources (ADNR) and USGS personnel using USGS 1:2,000,000 digital line graphs (DLG) datasets. Techniques are described by Domaratz and others (1982). Only those polygons representing lakes having an area greater than 20 acres were kept.

Data and Resources

  • Download
    Lakes Coverage


  • View website
    Website :: National Water Quality Assessment (NAWQA)—Cook Inlet Basin Study Unit

  • View metadata
    Metadata :: Lakes - Cook Inlet Basin - National Water-Quality Assessment Program

Status: Complete
Type: Data
End Date: 1997/06/20
Data Types: GIS
  • 01c8ceef3d596f40f05bf496ca00d929
    Published by Lisa
    2016-10-28 17:01:30 -0800
  • 01c8ceef3d596f40f05bf496ca00d929
    Updated by Lisa
    2016-10-28 17:01:22 -0800
  • Ee0a0a4e02f5cfa5b34a4bcad3d24f20
    Updated by Trail
    2015-07-18 17:46:07 -0800
  • Ee0a0a4e02f5cfa5b34a4bcad3d24f20
    Updated by Trail
    2015-07-18 14:04:31 -0800
  • Ee0a0a4e02f5cfa5b34a4bcad3d24f20
    New record created
    2015-07-13 23:27:10 -0800