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High Resolution Orthoimagery (HRO)
High Resolution Orthoimagery features major U.S. urban areas, state capitals, famous attractions, county, and state imagery at 3-inch, 6-inch, 1-foot, and 2.5-foot spatial resolutions. (Objects roughly these sizes are identifiable.) New images are become available depending on the location, resolution requirements, partnerships, and USGS contracts. High Resolution Orthoimagery provides a critical tool for those involved in development decisions such as resource managers and city planners. Because of its detailed focus, with High Resolution Orthoimagery emergency responders can determine the best evacuation routes, quickly designate alternatives, and plan safe access to aid. High Resolution Orthoimagery allows law enforcement to judge the best locations to place surveillance cameras in high-traffic urban areas and popular attractions.

Specifications
Resolution Type Projection Horizontal Datum Format Coverage
Ranges from 0.25 foot to 2.5 foot, depending on dataset. Black & White Color Infrared 4 Band (Color & Infrared) State Plane or UTM, depending on the dataset NAD83, unless otherwise specified TIFF with world file. Other formats available upon online download. Areas in the Conterminous U.S., Puerto Rico, and Portions of Alaska and Hawaii
U.S. Mexico and Canadian Border Special Acquisition Imagery
Orthoimagery was acquired along the U.S. - Mexico border from Texas to California and the U.S. - Canadian border from Maine to Washington. The imagery was flown in late 2008 and early 2009 at a 0.30 meter pixel resolution in natural color. The coverage extends ten miles into Mexico and Canada and thirty miles into the U.S.. The data is public domain and available via web mapping services, online downloads, and bulk media distribution.

Specifications
Resolution Type Projection Horizontal Datum Format Coverage
0.30 meter Natural Color UTM NAD83 TIFF with world file. Other formats available upon online download. U.S. - Mexico Border from Texas to California (10 miles into Mexico and Canada, 30 miles into U.S.)

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URL: http://seamless.usgs.gov/hro.php
Page Contact Information: webmapping@usgs.gov
Page Last Modified: May 25, 2011