ROCK PILES

DODGE COUNTY, MINNESOTA

Field | Description
Main ID Information | Metadata Updated 2007
Title | Dodge County Aggregate Resource Evaluation – Rock Piles
Filename | Rx_pile (ArcView Shapefile)
Abstract | This dataset includes information about field observations of rock piles. Field work was completed in the fall of 2001. Rock piles can be a source for crushed stone or rip rap.
Place Keywords | Dodge County, Minnesota
Theme Keywords | Field Observations, Aggregate Resources, Surficial Geology, Rock Piles
Time Period of Content | Fall 2001 and spring 2002
Parent Theme | NA
Spatial Extent of the Data | Dodge County, Minnesota
Contact Person | Aggregate Resources Mapping Program
Contact Person Organization/Division | Department of Natural Resources, Division of Lands and Minerals
Contact Person Position | Geologist or GIS Specialist
Contact Address | 500 Lafayette Road, Box 45
Contact City | St. Paul
Contact Zip Code | 55155-4045
Contact Voice Phone | 651-259-5959
Contact Fax Phone | 651-296-5939
Additional ID Information |
Originator | Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section
Purpose | To summarize the observed rock pile locations.
Progress | Complete
Currentness Reference | All field observations were completed in the fall of 2001 and spring 2002
Maintenance Frequency | None Planned
Access Constraints | NA
Use Constraints | NA
Associated Data Sets | County Aggregate Mapping Program datasets for Dodge County, including data on sand and gravel potential, crushed stone potential, field observations, rock piles, and test pit quality data.
Data Quality |
Attribute Accuracy |
Logical Consistency | NA
Completeness | The data points were located on topographic maps and aerial photographs. The topographic maps are 1:24000 and the aerial photographs are 1:40000. These points represent the location of where the individual rock piles were observed.
Horizontal Positional Accuracy | 1:24:000
Vertical Positional Accuracy | NA
Lineage | The data points were located on 1:24000 USGS topographic maps and 1:40000 aerial photographs.
Source Scale Denominator | 1:24:000
Spatial Reference |
Horizontal Coordinate Scheme | UTM
Ellipsoid | GRS80
Horizontal Datum | NAD83
Horizontal Units | Meters
Distance Resolution | NA
Altitude Datum | NA
Altitude Units | NA
Depth Datum | NA
Depth Units | NA
UTM Zone Number | 15 Extended
Raster only |
Cell Width | NA
Cell Height | NA
Spatial Data Organization |
Geographic Reference for Tabular Data | NA
Native Dataset Environment | ArcView 3.1 and ArcInfo 8.0.2
Vendor Specific Object Type | Point
Tiling Scheme | County
Spatial Object Type | Point
Transfer Size |
Entities -- Attributes |
Entity-Attribute Overview | A description of located rock piles.
Entity-Attribute Detailed Citation | ArcView specific fields include shape (i.e., feature type = point), and field_id (unique id for point, assigned as digitizing)> The rock pile specific attributes are described in the table below.

Table Name | Field Name | Begin Column | Definition | Valid Values | Descriptions
Rx_pile.dbf | Field_id |  | Text, 16 | Ex: X-1,X-2, X-3, etc… | Unique Identifiers used in the field, letters have no significance.
| Field_desc |  | Text, 70 | Rock Pile | Observed rock piles located in county.