Digitized vector data of BLM designated Areas of Critical Environmental Concern (ACEC) in Arizona. Digitized from 1:24,000 scale manuscripts prepared by Field Office Specialists or digitized on-screen and edited at 1:24:000 scale or larger by GIS specialists.
Developed to take advantage of GIS software for data analysis and for producing hard copy maps.
publication date
NOT FOR LEGAL USE.
One No. Central Ave.
Attribute accuracy is tested by manually comparing hard copy plots of the digital data with source materials or by interactively querying and verifying on the screen.
The data has been checked to make sure that all intended polygons are closed, that there are no unintended undershoots, overshoots or dangles and that there is only only label point per polygon. This does not preclude the presence of one or more of these errors.
This coverage is in draft format. Verification by the appropriate BLM Field Office is needed.
Approximately + or - 40 feet. Test by visual comparison of hard copy check plots against source material and/ or verfying the location of the data on screen relative to other data layers in the same geographic area.
None.
Vector data representing BLM designated Areas of Critical Environmental Concern boundaries.
Data were compiled on 1:24000 scale USGS paper quads and digitized from those quads. Some of the original ArcInfo coverages were converted to shapefiles and edited in ArcView while others were edited in ArcEdit. Shapefiles were converted back to coverages and Individual files were then merged into a single statewide coverage. Data was checked on screen against other data layers in the same geographic area. Updates were performed in 10/2008 to reflect changes resulting from new Land Use Plans in the Arizona Strip, Hassayampa, Lake Havasu, and Yuma Field Offices. The updated data was then sent to each Field Office for verification.
One No. Central Ave.
Metadata imported.
Metadata imported.
Dataset copied.
Metadata imported.
Dataset moved.
Dataset moved.
The name of the ACEC
The reason(s) for which the ACEC was designated.
The number of acres in each ACEC polygon.
The date of ACEC designation.
The BLM Land Use Plan under which the ACEC was designated.
The BLM Field Office code.
Arizona Strip Field Office
Hassayampa Field Office
Lower Sonoran Field Office
Kingman Field Office
Yuma Field Office
Lake Havasu Field Office
Safford Field Office
Tucson Field Office
The state in which the ACEC lies.
The BLM District Office code.
Arizona Strip District
Phoenix District
Colorado River District
Gila District
Phoenix District
Colorado River District
Gila District
One No. Central Ave.
The Bureau of Land Management (BLM) provides these geographic data "as is." BLM makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. BLM further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of BLM, no warranty, expressed or implied, is made by BLM regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the BLM have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by BLM.
Contact GIS Specialist for product information and ordering instructions or connect to http://www.blm.gov/az/gis/index.htm
One No. Central Ave.