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April 7, 2016
New Maps for Texas and Oklahoma Released

New US Topo maps for Texas and Oklahoma are now available in the USGS Store for free download. One of the main improvements is the inclusion of the U.S. Census Bureau’s Topologically Integrated Geographic Encoding and Referencing (TIGER) road data.

“The US Topo digital maps are a great public resource to provide authoritative, robust maps to emergency management field personnel and first responders when response time matters”, said Michael Ouimet, Critical Information Systems Manager for the Texas Division of Emergency Management. “Our agency deployed the US Topo digital maps to our field personnel across the state.”

Other important additions to the new US Topo maps for Texas and Oklahoma are the integration of wetlands layers using data from the U.S. Fish & Wildlife Service National Wetlands Inventory, along with the continued incorporation of “crowdsourced” trail data from the International Mountain Bike Association.

The US Topo map improvement program has entered its third, three-year cycle of revising and updating digital US Topo quadrangles. 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.

The USGS recently released US Topo maps for Wisconsin, Iowa and Kansas which were the first set of states to feature TIGER data. The TIGER database contains all geographic features — such as roads (more than 6.3 million miles), railroads, rivers, and legal and statistical geographic boundaries — needed to support the Census Bureau’s data collection and dissemination programs.

To compare change over time, scans of legacy USGS topo maps, some dating back to the late 1800s, can be downloaded from the USGS Historical Topographic Map Collection.

For more information on US Topo maps: http://nationalmap.gov/ustopo/.

Scan of the 1886 legacy topographic map quadrangle of the greater Austin, Texas area from the USGS Historic Topographic Map Collection Updated 2016 version of the East Austin US Topo quadrangle with orthoimage turned off to better see the improved road network. (1:24,000 scale) Updated 2016 version of the East Austin US Topo quadrangle with orthoimage turned on. (1:24,000 scale)

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