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USGS Releases California Topo Maps Featuring Selected Trails

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USGS Releases California Topo Maps Featuring Selected Trails

Postby ERIC » Thu Apr 02, 2015 6:17 am

USGS Releases California Topo Maps Featuring Selected Trails and Other Substantial Updates

Last Updated: Thursday, 02 April 2015 06:03
Sierra Sun Times


April 1, 2015 - Several of the 2,798 new US Topo quadrangles for California now display public trails along with segments of the Pacific Crest National Scenic Trail. Also the new maps now show improved data layers such as public land survey information, map symbol redesign, enhanced railroad information and new road source data. Some of the data for the trails is provided to the USGS through a nationwide “crowdsourcing” project managed by the International Mountain Biking Association (IMBA).

“The USGS 7.5-minute quads have been the long time gold standard for wall to wall mapping in the United States.” said Tom Lupo, Deputy Director, Data and Technology Division, California Department of Fish and Wildlife. “To me, they are the second best thing the Federal government has ever done!”

For California recreationalists and visitors who want to explore the diverse west coast landscape on a bicycle seat, hiking, horseback or other means, the new trail features on the US Topo maps will come in handy. During the past two years the IMBA, in a partnership with the MTB Project, has been building a detailed national database of trails. This activity allows local IMBA chapters, IMBA members, and the public to provide trail data and descriptions through their website. MTB Project and IMBA then verify the quality of the trail data provided, ensure accuracy and confirm the trail is legal. This unique crowdsourcing venture has increased the availability of trail data available through The National Map mobile and web apps, and the revised US Topo maps.

Another trail system, provided through a USGS partnership with the U.S. Forest Service, is the...

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