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More information about the Caddo Lake Institute is located at the main Caddo Lake Institute Hompage.

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Lake Current Events

This site is the Technical Archive/Data Server.

 

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USGS 1:100,000 DLG (Digital Line Graphs)

Title: 1:100,000 USGS Digital Line Graphs

Scale/Resolution: 1:100,000

Data Type: vector line coverage

Source: United States Geological Survey (USGS)

Description: Digital vector delineation of hydrology, pipelines, railroads, and roadways which occur on the USGS 1:100,000 quadrangles for all 1:100,000 quads (Marshall & Shreveport North) falling in the Caddo Lake Ecosytem.

For more information contact the USGS about a guide describing the 1:100,000 DLG data.

 

Download NAD27 Hydrography Data (1,520KB)

Download NAD83 Hydrography Data (1,520KB)

 

Download NAD27 Roads Data (4,022KB)

Download NAD83 Roads Data (4,021KB)

 

Download NAD27 Pipelines Data (124KB)

Download NAD83 Pipelines Data (123KB)

 

Download NAD27 Railroads Data (96KB)

Download NAD83 Railroads Data (96KB)

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© 2002, Caddo Lake Institute, Inc. All Rights Reserved.