DIGITAL ORTHOPHOTO (DOP) COVERAGE FOR WALWORTH COUNTY -------------------------------------------------- FORMAT: MrSID (Multi-Resolution Seamless Image Database) PRODUCER OF ORIGINAL DOP: US Department of Agriculture CUSTODIAN OF ORIGINAL DOP: US Department of Agriculture GROUND RESOLUTION: 0.6-Meter pixels PROJECTION: Wisconsin Transverse Mercator (WTM) PROJECTION METHOD: Bilinear HORIZONTAL DATUM: NAD83, 1991 Adjustment (HPGN, or HARN) ACCURACY: + or - 6 Meters FILE SIZE: 977 MB COMPRESSION FACTOR: 20:1 SOURCE IMAGERY: 2018 National Agriculture Imagery Program (NAIP) LEAF: on FLIGHT DATE RANGE: 20180917 - 20180924 SPECTRA: Natural color SCALE OF SOURCE NAIP PHOTOGRAPHY: Unknown RECTIFICATION SOURCE: According to NAIP metadata, "The most recent USGS 10-meter DEMs were used in the rectification process." USAGE RESTRICTIONS: none FOR MORE INFORMATION: https://www.fsa.usda.gov/programs-and-services/aerial-photography/imagery-programs/naip-imagery/index