Though all of the dates for this frame point to 2005, this is only when the older frame from the paper map was converted over to digital form. All of the stratification work for the paper maps and was completed in 1984.
United States Department of Agr, National Agricultural Statistics Service, 2006, Conversion of Colorado 2005: U.S. Department of Agriculture, National Agricultural Statistics Service, Fairfax, Virginia.Online Links:
Planar coordinates are encoded using row and column
Abscissae (x-coordinates) are specified to the nearest 30
Ordinates (y-coordinates) are specified to the nearest 30
Planar coordinates are specified in Meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference 80.
The semi-major axis of the ellipsoid used is 6378137.00.
The flattening of the ellipsoid used is 1/298.257.
Value | Definition |
---|---|
13 | 50% cultivated |
15 | 50% cultivated (potatoes) |
20 | 15-50% Cultivated |
24 | SPEC20: 15-100% cultivated, Native American |
25 | 15-50% cultivated (potatoes) |
28 | SPEC20: 15-50% cultivated, Native American |
31 | Agri-Urban: > 20 homes per sq. mi. |
32 | Commercial/Dense Residential: > 20 homes per sq. mi. |
34 | SPEC13: Potential Urban/Agricultural, > 50% cultivated |
35 | SPEC20: Potential Urban/Non-Agricultural, < 50% cultivated |
38 | SPEC31: Native American, > 20 homes per sq. mi. |
40, 42 | SPEC40: PPS (Private Range) |
43, 44, 45 | SPEC40: PPS (Public Range) |
47 | SPEC40: Private Range, < 15% cultivated |
48 | SPEC40: PPS (Native American) |
49 | SPEC40: Native American, < 15% cultivated |
50 | Non-Agricultural |
Range of values | |
---|---|
Minimum: | 6.10 (actual value, not range) |
Maximum: | 44,033.28 |
Range of values | |
---|---|
Minimum: | 3904.00 (actual value, not range) |
Maximum: | 28,181,299.20 (actual value, not range) |
Area Frame Section staff
Matt Deaton
USDA/NASS/RDD/AFS
1400 Independence Ave SW, Room 6034
Washington, D.C. 20250
703-877-8000 (voice)
HQ_RD_OD@nass.usda.gov
These data are intended for geographic display and analysis at the state level. The data should be displayed and analyzed at a scale of 1:100,000 or smaller (e.g., 1:250,000, etc.). The strata data are provided "as is". USDA/NASS does not warrant results you may obtain using the strata data.
U.S. Geologic Survey (USGS), 1979 - 1991, USGS Topographic Quadrangles: U.S. Geologic Survey, Reston, VA.
Agency, Farm Service , 1999 - 2002, National Aerial Photography Program (NAPP): Aerial Photography Field Office (APFO), Salt Lake City, UT.
U.S. Geological Survey (USGS), 1979 - 1991, USGS Topographic Quadrangles: U.S. Geological Survey, Reston, VA.
United States Census Bureau, 2000, TIGER Digital Vector Files: U.S. Census Bureau, Suitland, MD.
NASA, 1981-1982, Landsat 3 Thematic Mapper Imagery: Space Imaging, Lanham, MD.
National Agricultural Statistics Service, 2004, Area Frame Design for Agricultural Surveys: NASS/USDA, Washington, DC.
Though all of the dates for this frame point to 2005, this is only when the older frame from the paper map was converted over to digital form. All of the stratification work for the paper maps and was completed in 1984.
Data sources used in this process:
The sources used for digitizing strata boundaries are 1:100,000 scale Digital Raster Graphics
There are known gaps and overlaps. This data set includes the area in square miles and number of acres for each strata. Boundaries may not be coincident with strata boundaries of adjacent states.
Checks for topological consistency were performed on this data set.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- None. Acknowledgment of the U.S. Department of Agriculture, National Agricultural Statistics Service would be appreciated in products derived from these data.
USDA/NASS/RDD
1400 Independence Ave SW, Room 6034
Washington, D.C. 20250
703-877-8000 (voice)
- Contact_Instructions: N/A
Users of the strata data are solely responsible for interpretations made from the product. The strata data are provided "as is". USDA/NASS does not warrant results you may obtain by using the strata data. Feel free to contact our staff at (HQ_RD_OD@nass.usda.gov) if technical questions arise in the use of the strata data.
Data format: | ESRI Shapefile |
---|---|
Network links: | <https://www.nass.usda.gov/Research_and_Science> |
N/A
USDA/NASS/RDD
1400 Independence Ave SW, Room 6034
Washington, D.C. 20250
703-877-8000 x151 (voice)
HQ_RD_OD@nass.usda.gov