December 12, 2017

Digital Maps: USGS Begins New Update Cycle of U.S. Topo Maps with Addition of Data From Multiple Sources

From the USGS:

The USGS US Topo map program has entered its third, three-year cycle of revising and updating the digital US Topo maps. To start this new cycle, the USGS National Geospatial Program is excited to announce the inclusion of U.S. Census Bureau’s Topologically Integrated Geographic Encoding and Referencing (TIGER) roads data for the new US Topo maps, starting with the state of Wisconsin.

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The TIGER database contains all geographic features — such as roads, railroads, rivers, and legal and statistical geographic boundaries — needed to support the Census Bureau’s data collection and dissemination programs. The TIGER/Line Shapefiles are constantly improving, updated annually, and available for free download.

TIGER’s roads layer includes 6.3 million miles of roads. The original TIGER GIS vector data are available for free download from the TIGER products page. TIGER data are public domain, so using these road data on US Topo removes a previous use restriction from this USGS map product

Other improvements to the new Wisconsin US Topo maps include the addition of the “crowdsourced” trail data from the International Mountain Bike Association, increased parcel land data (PLSS), and most recently, trail data from the U.S. Forest Service.

Additionally, segments of The Ice Age Trail, one of 11 National Scenic Trails, will continue to be featured on select US Topo maps. The USGS partnered with the National Park Service, Wisconsin Department of Natural Resources and Ice Age Trail Alliance to incorporate the Ice Age Trail onto Wisconsin’s maps. The NPS is celebrating its 100th anniversary this year.

These new US Topo maps replace the second edition US Topo maps and are available for no-cost file download from The National Map, the USGS Map Locator & Downloader website , and several other USGS applications.

Read the Complete Announcement

Gary Price About Gary Price

Gary Price (gprice@mediasourceinc.com) is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at Ask.com, and is currently a contributing editor at Search Engine Land.

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