USGS Small-scale Dataset - Global Map: 1:1,000,000-Scale Streams of the United States 201406 Shapefile
Published By U.S. Geological Survey, Department of the Interior
Issued over 9 years ago
US
beta
Summary
Description
This map layer includes Global Map data showing streams in the United States, Puerto Rico, and the U.S. Virgin Islands. The data are a modified version of the National Atlas of the United States 1:1,000,000-Scale Streams of the United States; that file was produced primarily from the Medium-Resolution and High-Resolution National Hydrography Dataset NHDFlowline feature classes, through feature selection and cartographic generalization based on reference to published small-scale ancillary data sets.