Microsoft Research Maps
Online repository of US aerial imagery / From Wikipedia, the free encyclopedia
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Microsoft Research Maps (MSR Maps) was a free online repository of public domain aerial imagery and topographic maps provided by the United States Geological Survey (USGS). The site was a collaboration between Microsoft Research (MSR), Bing Maps, and the USGS. It was in operation from June 1998 to March 2016. It had 30,000 to 50,000 visitors per day as of January 2010. The site was renamed in 2010, prior to which it had been known as TerraServer-USA[1] (formerly Microsoft TerraServer).
The site had black and white USGS aerial photographs of approximately 97% of the United States. In 2000, the USGS launched the new Urban Areas program, which will ultimately take high-resolution color aerial photographs of about 100 major American cities.[2][3] MSR Maps had Urban Areas data for 40 cities.[citation needed]
Microsoft had announced that the MSR Maps web site was going to permanently close on May 1, 2012,[4] but later changed that decision based on requests from users of the site.[5] As of March 2016 the site is no longer available.