Color aerial orthophotography is provided in MrSid format. Each .sid covers approximately one township/range. To download countywide aerials from our FTP site, click the year below. Current aerials suitable for use in AutoCAD may be downloaded using the link below the table. 

Individual townships may be downloaded using the map at the end of this page. Read "How to Get Aerials for Individual Townships" below for guidance.

​Year ​Flight Dates​Resolution

flown by

​20191/9 - 2/25​4" ground pixel size​

Pictometry International Corp.

20181/30 - 2/1​4" ground pixel size​Pictometry International Corp.​
​2017​1/11 - 3/20​4" ground pixel size​​Pictometry International Corp.​
20161/1 - 1/29​4" ground pixel size​​Pictometry International Corp.​
​2015​1/1 - 2/84" ground pixel size​​Pictometry International Corp.

​2014

​1/24 - 3/9​4" ground pixel size

​Pictometry International Corp.

​2013​12/30/12 - 2/21​4" ground pixel size​Pictometry International Corp.
​2012​2/23 - 2/24​6" ground pixel size

​Pictometry International Corp.

​20111/2 - 3/21​4" ground pixel size​Pictometry International Corp.
​20101/6 - 2/14​6" ground pixel size​Pictometry International Corp.
​2008​January​6" ground pixel size

​Pinnacle Mapping Technologies, Inc.

​2007​8/22 - 11/11​6" ground pixel size​Woolpert, Inc.
2005​1/17 - 1/25​6" ground pixel size

​EarthData, Inc.

Download 2019 aerials for use in AutoCAD


How to Get Aerials for Individual Townships

Click the subject township on the map below, or search by address (then click the map). This will pop-up a window with a list of years.  Click the year desired and SAVE the zip file. If you attempt to open the zip file, your browser may freeze.  Once downloaded, unzip the file and view the aerials in ArcGIS or AutoCAD. Or, download the Extensis Geoviewer plugin and view the aerial in your web browser.

 Click a township to view years available and download aerials