Web Resource

URL: https://www.sciencebase.gov/catalog/item/4f70ab22e4b058caae3f8deb

From the dataset abstract

These vector contour lines are derived from the 3D Elevation Program using automated and semi-automated processes. They were created to support 1:24,000-scale topographic map products,...

Source: USGS NED 1/3 arc-second Contours for Portland E, Maine 20180211 1 X 1 degree FileGDB 10.1


About this Resource

Last updated February 14, 2018
Created February 14, 2018
Format Web Resource
License U.S. Government Work
createdover 2 years ago
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