U.S. Dept of Agriculture Farm Services Agency Aerial Photography Field Office 2009 remote-sensing image Helena, Montana Montana State Library https://msl.mt.gov/geoinfo/data/Aerial_Photos/NAIP_2009 This data set contains imagery from the National Agriculture Imagery Program (NAIP). These data are digital aerial photos of the entire state of Montana, taken in the year 2009. The spatial resolution of the images is 1 meter. The State Library provides the data through several avenues: - View and download as either natural-color or false-color infrared images at https://montana.maps.arcgis.com/apps/webappviewer/index.html?id=44761dd5d8194b9a9b78fddd897a0dac - A 4-band (infrared, red, green, blue) map service at https://gisservicemt.gov/ArcGIS/rest/services/MSDI_Framework/NAIP_2009/ImageServer - For download as natural-color compressed county mosaics in MrSID format at https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2009_NAIP/UTM_County_Mosaics/. The state is covered by 62 images with a total size of 129 gigabytes. - For download as natural-color compressed 12-kilometer tiles in MrSID format at http://geoinfo.msl.mt.gov/data/Aerial_Photos/NAIP_2009. These images are in Montana State Plane coordinates, NAD1983, units meters. The state is covered by 2,732 images with a total size of 55 gigabytes. - As 4-band GeoTIFF images. The state is covered by 11,797 images, each of about 170 megabytes. The images are in UTM coordinates, each of which covers a 3.75-minute quadrangle, or one-quarter of a USGS 7.5-minute topographic map quadrangle. To order GeoTIFF images from the State Library, select the quadrangles you want from the tiff index shapefile at https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2009_NAIP/naip_2009_tif_index.zip and send them to the Library, along with a storage device of sufficient size to hold them and return postage for the device. An ESRI shapefile index showing the dates and times the images were acquired is available at https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2009_NAIP/Naip_2009_Dates.zip 20090623 20090902 Ground Condition -116.125 -104.000 49.000 44.250 ISO 19115 Topic Category imageryBaseMapsEarthCover Montana Spatial Data Infrastructure MSDI Montana Imagery Framework Georectified imagery Georectification Mosaic Air Photo Airphoto Air Photos Aerial Photo Aerial Photos Orthophoto Orthophotography Orthophotos MrSID NAIP DOQQ Digital orthophoto quarter quadrangle Color Infrared CIR Montana None The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time. Montana State Library mailing address

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Helena MT 59620-1800 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Individual/20090301_687_NAIP_2009_dates.gif Map showing aerial photography dates MrSID Generation 2 Farm Services Agency Digital Orthophoto Specifications. The specified accuracy for 1-meter imagery such as this is 5 meters. Aerial Photography Field Office 200910 40000 20090623 20090902 Ground Condition Imagery was flown with Leica ADS80 digital sensors to capture 1.0 meter raw data. Raw data is then downloaded using Leica XPro software. The raw imagery is then georeferenced using GPS/INS 200Hz exterior orientation information (x/y/z/o/p/k). Technicians precisely measure tie points in 3 bands/looks (Back/Nadir/Forward) for each line using Leica Xpro software. The resulting point data and exterior orientation data is used to perform a full bundle adjustment using Xpro. Any blunders are removed, and weak areas are manually supplemented to ensure good coverage of points. Once the point data is cleaned and point coverage is acceptable photo-identifiable GPS-surveyed ground control points are introduced in the corners and center of the block being adjusted. The output from this bundle adjustment process is the revised exterior orientation data for the sensor with any GPS/INS, datum, and sensor calibration errors modeled and compensated for. Using this revised EO data orthorectified image strips are created using the USGS NED DEM. The orthorectified strips are overlaid with each other and with the ground control to check accuracy. Once the accuracy of the orthorectified image strips are validated the strips are processed with a NWG proprietary dodging package that compensates for the bi-directional reflectance function that is caused by the sun's position relative to the image area. This compensated imagery is then imported into Inpho's OrthoVista 4.4 package which is used for the final radiometric balance, mosaic, and DOQQ sheet creation. These final DOQQ sheets contain a 300m minimum buffer. These final DOQQ tiles are edge inspected to the existing MDOQQ sheets for accuracy validation. 20090929 row and column 1 1 meters North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 Montana State Library mailing address

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Helena MT 59620-1800 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov Downloadable Data Live Data and Maps Offline Data The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time. MrSID Generation 2 http://geoinfo.msl.mt.gov/data/Aerial_Photos/NAIP_2009 https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2009_NAIP/UTM_County_Mosaics ArcGIS Server Map Service https://gisservicemt.gov/ArcGIS/rest/services/MSDI_Framework/NAIP_2009/ImageServer ArcGIS Online Map http://montana.maps.arcgis.com/home/webmap/viewer.html?webmap=437353b569ea46319fb657e1c122b3d1 20160307 20140314 Montana State Library mailing address

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Helena Montana 59620-1800 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 {a90a6048-c5b1-4c57-9361-aa1829c816bf}