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I'm looking for somewhere I can get aerial map files for exclusive offline use. Essentially I need aerial files (JP2K, GeoTIFF, etc.) that can be purchased or acquired and hosted on a private offline server.

I have used NAIP aerial files in a past and they have worked great but they don't have coverage in the area I am interested in. I need the files to have at least the equivalent resolution as NAIP. It also can't be a subscription service it needs to be a one time payment to acquire the files that I need.

Preferred resolution is equivalent to NAIP so 1-meter ground sample distance (GSD), I would like the files to be <5 years old but that can be a little flexible, and the area of interest is Aberdeen Proving Grounds outside of Baltimore.

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    Could you expand on which area you need, which resolution would be preferred, how old the data can be and what channels you are interested in? – Erik Dec 11 '18 at 13:33
  • Thanks for the reply Erik, I've expanded my question but am not sure what you mean by channels? – mconn Dec 11 '18 at 13:49
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    Channels = color bands (Red, Green, Blue, Near IR, etc) – Bjorn Dec 11 '18 at 14:06
  • Oh okay, I just need full color so Red, Green, and Blue. – mconn Dec 11 '18 at 14:07
  • NAIP should have wall to wall coverage in the US. What areas do you need coverage? – Aaron Dec 11 '18 at 14:26
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The State of Maryland has leaf-off orthoimagery available for download for no cost that is refreshed on a regular cycle. See https://imap.maryland.gov/Pages/imagery-download.aspx for more information. It will be higher resolution than NAIP. \

  • Lots of other states do as well... – Jersey Andy Dec 11 '18 at 20:54

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