1:100,000-scale Digital Line Graphs (DLG) from the U.S. Geological Survey
Entry ID: DLG100K

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Summary
Abstract: Digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related sources. Intermediate-scale DLG data are derived from USGS 1:100,000-scale 30- by 60-minute quadrangle maps. If these maps are not available, Bureau of Land Management planimetric maps at a scale of 1: 100,000 are used. Intermediate-scale DLG's are sold in five categories: (1) Public Land Survey System; (2) boundaries (3) transportation; (4) hydrography; and (5) hypsography. All DLG data distributed by the USGS are DLG - Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks.

Purpose: DLGs depict information about geographic features on or near the surface of the Earth, terrain, and political and administrative units. These data were collected as part of the National Mapping Program.
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Geographic Coverage
Spatial coordinates   
  N: 49.0   S: 24.0   E: -66.0   W: -126.0

Data Set Citation
Dataset Originator/Creator: U.S. Geological Survey (USGS) EROS Data Center (EDC)
Dataset Title: 1:100,000-scale Digital Line Graphs
Dataset Release Date: 1981-01-01
Dataset Release Place: Sioux Falls, SD 57198 USA
Dataset Publisher: U.S. Geological Survey
Online Resource: http://earthexplorer.usgs.gov
Temporal Coverage
Start Date: 1987-06-19
Access Constraints None
Use Constraints None
Data Set Progress
COMPLETE
Originating Center
Data Center
Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL: http://eros.usgs.gov/
Dataset ID: DLG 100K

Data Center Personnel
Name: EROS CENTER
Phone: 605-594-6151
Phone: 800-252-4547
Fax: 605-594-6589
Email: lta at usgs.gov
Contact Address:
LTA Customer Services
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA
Distribution
Distribution Media: Digital Download
Distribution Format: SDTS
Fees: None
Personnel
Role: TECHNICAL CONTACT
Phone: 605-594-6151
Phone: 800-252-4547
Fax: 605-594-6589
Email: lta at usgs.gov
Contact Address:
LTA Customer Services
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA
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Publications/References
U.S. Geological Survey, 1989, Digital line graphs from
1:100,000-scale
maps--data users guide 2: Reston, Virginia, U.S. Geological Survey,
88 p.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-02-06
Last DIF Revision Date: 2013-06-12
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