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## Mille Lacs County Aggregate Resource Evaluation - Aggregate Potential - Sand and Gravel Potential - millsgp

This page last updated: 2008
Metadata created using Minnesota Geographic Metadata Guidelines

### Metadata Summary

Originator | MN Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section, Aggregate Resource Mapping Program
Abstract | This dataset consists of information about the geology, geological characteristics, and sand and gravel potential of 226 map units. Five fields relate to the surficial geology of the map unit, including id, sediment, landform, surficial geology description, and dominant lithology. Five fields relate to sand and gravel characteristics, including probability, quality, texture, overburden thickness, and deposit size of the map unit. These characteristics were used to determine the aggregate potential of the map unit for sand and gravel.
Browse Graphic | None available
Time Period of Content Date | 2007
Currentness Reference | Data were gathered in the fall of 2005 through the spring of 2006 and compiled in the spring of 2007.
Access Constraints | Acknowledgement of the Minnesota Department of Natural Resources is appreciated for products derived from these data.
Use Constraints | Acknowledgement of the MN DNR is appreciated in products derived from these data.
Distributor Organization | Minnesota Department of Natural Resources, Division of Lands and Minerals
Ordering Instructions | The Aggregate Resource Mapping Program's datasets for Mille Lacs County are included in the file milldata.zip, accessible from the MN DNR Aggregate Mapping web page: http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html The dataset is also available as aggregate resource data layers stored at drive:\data\resource on the CD (where 'drive' is the CD reader or writer drive on the PC). The datasets include data on sand and gravel potential, crushed stone potential, overburden model source points, field observations, aggregate pits and quarries, County Well Index (CWI) data sources, field observation's sieve database, and MN DOT ASIS pit quality database. In addition, selected Mille Lacs aggregate resource datasets can be viewed in the Aggregate Resource Mapping Program's Aggregate Mapper at: http://www.dnr.state.mn.us/lands_minerals/aggregate_maps/online_maps/index.html Aggregate Mapper allows users with little to no GIS experience the ability to work with GIS data. The site can display spatial and tabular aggregate resource data such as sand and gravel potential, crushed stone potential, field observations, and gravel pits. This information can be overlaid on a variety of reference information from Web Mapping Services (WMS) sources like 1:24,000-scale DRGs (digital topographic maps), 1991 black-and-white air photos, and 2003-04 Farm Service Agency color air photos.
Online Linkage | Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata.

### Full Metadata

## Mille Lacs County Aggregate Resource Evaluation - Aggregate Potential - Sand and Gravel Potential - millsgp

Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information

Section 1 | Identification Information |  | Top of page
Originator | MN Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section, Aggregate Resource Mapping Program
Title | Mille Lacs County Aggregate Resource Evaluation - Aggregate Potential - Sand and Gravel Potential - millsgp
Abstract | This dataset consists of information about the geology, geological characteristics, and sand and gravel potential of 148 map units. Five fields relate to the surficial geology of the map unit, including id, sediment, landform, surficial geology description, and dominant lithology. Five fields relate to sand and gravel characteristics, including probability, quality, texture, overburden thickness, and deposit size of the map unit. These characteristics were used to calculate the aggregate potential of the map unit for sand and gravel.
Purpose | To summarize the geological characteristics, surficial geology, and aggregate potential (sand, gravel) of the different units. To help categorize the geological characteristics and incorporate them into a model to help determine the aggregate potential of the deposit.
Time Period of Content Date | 2007
Currentness Reference | Data were gathered in the fall of 2005 through the spring of 2006 and compiled in the spring of 2007.
Progress | Complete
Maintenance and Update Frequency | None planned
Spatial Extent of Data | Mille Lacs County, Minnesota
Bounding Coordinates | -93.81 -93.43 46.25 45.55
Place Keywords | Mille Lacs County, Minnesota
Theme Keywords | Surficial geology, geological characteristics, aggregate potential, sand and gravel
Theme Keyword Thesaurus |
Access Constraints | Acknowledgement of the Minnesota Department of Natural Resources is appreciated for products derived from these data.
Use Constraints | Acknowledgement of the MN DNR is appreciated in products derived from these data.
Contact Person Information | Aggregate Resource Mapping Program, Industrial Minerals Geologist or GIS Specialist Minnesota Department of Natural Resources, Division of Lands and Minerals 500 Lafayette Road St. Paul, MN 55155-4045 Phone: 651-259-5959 FAX: 651-296-5939 E-mail: aggregate.map@dnr.state.mn.us
Browse Graphic | None available
Browse Graphic File Description |
Associated Data Sets | The Aggregate Resource Mapping Program's datasets for Mille Lacs County are included in the file milldata.zip, accessible from the MN DNR Aggregate Mapping web page: http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html The dataset is also available as aggregate resource data layers stored at drive:\data\resource on the CD (where 'drive' is the CD reader or writer drive on the PC). The datasets include data on sand and gravel potential, crushed stone potential, overburden model source points, field observations, aggregate pits and quarries, County Well Index (CWI) data sources, field observation's sieve database, and MN DOT ASIS pit quality database. In addition, selected Mille Lacs aggregate resource datasets can be viewed in the Aggregate Resource Mapping Program's Aggregate Mapper at: http://www.dnr.state.mn.us/lands_minerals/aggregate_maps/online_maps/index.html Aggregate Mapper allows users with little to no GIS experience the ability to work with GIS data. The site can display spatial and tabular aggregate resource data such as sand and gravel potential, crushed stone potential, field observations, and gravel pits. This information can be overlaid on a variety of reference information from Web Mapping Services (WMS) sources like 1:24,000-scale DRGs (digital topographic maps), 1991 black-and-white air photos, and 2003-04 Farm Service Agency color air photos.
Section 2 | Data Quality Information | Top of full metadata | Top of page
Attribute Accuracy |
Logical Consistency | Overshoots and undershoots were fixed by a variety of techniques, thus the lines have been checked and completed.
Completeness | The sand and gravel potential map units were delineated by the interpretation of aerial photographs at a 1:40000 scale. These interpretations were plotted on 1:24000 USGS topographic maps. These delineations and unit descriptions were field checked and revised. The final coverage was digitized onscreen using Arcview with USGS DOQs (at a scale of 1:12000) and USGS DRGs (at a scale of 1:24000) as the spatially registered backdrops. This was a reconnaissance-scale survey and was mapped at 1:50000.
Horizontal Positional Accuracy | 1:50000
Vertical Positional Accuracy | Not applicable.
Lineage | Color infrared and black-and-white aerial photographs were used to delineate geological landforms and aggregate resources. Stereoscopic pairs of color infrared aerial photographs (NAPP, 9in x 9in at 1:40000 scale, April 1991 and April 1992) were used along with reconnaissance-level, high-altitude, black-and-white photographs (1:80000 scale). Aerial photographs (DOQs at 1:12000) were also available digitally and used within Arcview. Aerial photographic interpretation was completed with a glacial mapping technique known as the landsystems approach. This technique relies on the principle that depositional glacial landforms are composed of a predictable range of sediments, some consisting of sorted sand and gravel and others consisting of silts, clays, or unsorted materials. In addition to the landsystems approach, several other general characteristics helped determine the nature of the material, such as tonal contrasts, texture, context, shape, size, trend, association, and patterns. These characteristics can help determine the properties of the surface material (e.g., certain vegetation grows on well drained soils such as sand and gravel, which on an aerial photograph has a distinctive texture, tone, pattern, etc.). The landform recognition approach (part of the landsystems approach) was also used when interpreting the topography within Mille Lacs County. Glacial landforms have distinct and unique shapes and patterns that can be observed in their topographic expression. Topographic maps (USGS 1:24000), digital elevation models, and shaded relief maps were all used to help delineate these sand and gravel bearing features. The topographic expression of a feature can also be observed by looking at the distribution of lakes and wetlands. For example, a string of lakes and/or wetlands may be the signature of a glacial outwash channel or collapsed channel, which may host sand or gravel deposits. Several aggregate bearing features were located using this technique (outwash channels, collapsed channels, glaciofluvial fans, eskers, and terraces).
Source Scale Denominator | 50000
Section 3 | Spatial Data Organization Information | Top of full metadata | Top of page
Native Data Set Environment | ArcGIS 9.2 and Arcview 3.3 from ESRI
Geographic Reference for Tabular Data |
Spatial Object Type | Vector
Vendor Specific Object Types | Polygon
Tiling Scheme | Mille Lacs County
Section 4 | Spatial Reference Information | Top of full metadata | Top of page
Horizontal Coordinate Scheme | UTM
Ellipsoid | GRS80
Horizontal Datum | NAD83
Horizontal Units | Meters
Distance Resolution |
Altitude Datum | Not applicable
Depth Datum | Not applicable
UTM Zone Number | 15E
Section 5 | Entity and Attribute Information | Top of full metadata | Top of page
Entity and Attribute Overview | The polygons were delineated to represent geological features, geological characteristics, and aggregate potential for sand and gravel.
Entity and Attribute Detailed Citation | millsgp_att.htm Attribute values can be found in the following table: millsgp_att.htm. If this table hotlink cannot be found by your browser, you can find this file stored in the same location (i.e., drive:\docs) as this metadata record.
Section 6 | Distribution Information | Top of full metadata | Top of page
Publisher | MN Department of Natural Resources, Division of Lands and Minerals, Mineral Potential Section, Aggregate Resource Mapping Program
Publication Date | 2008
Contact Person Information | Aggregate Resource Mapping Program Industrial Minerals Geologist or GIS Specialist Minnesota Department of Natural Resources, Division of Lands and Minerals 500 Lafayette Road St. Paul, MN 55155-4045 Phone: 651-259-5959 FAX: 651-296-5939 E-mail: aggregate.map@dnr.state.mn.us
Distributor's Data Set Identifier | Mille Lacs County Aggregate Resource Evaluation
Distribution Liability | The Minnesota Department of Natural Resources makes no representation or warranties, express or implied, with respect to the reuse of data provided herewith, regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitability, or reliability of this data for any purpose. The user accepts the data 'as is', and assumes all risks associated with its use. By accepting this data, the user agrees not to transmit this data or provide access to it or any part of it to another party unless the user shall include with the data a copy of this disclaimer. The Minnesota Department of Natural Resources assumes no responsibility for actual or consequential damage incurred as a result of any user's reliance on this data.
Transfer Format Name |
Transfer Format Version Number |
Transfer Size | mb for data, mb for associated maps
Ordering Instructions | The Aggregate Resource Mapping Program's datasets for Mille Lacs County are included in the file milldata.zip, accessible from the MN DNR Aggregate Mapping web page: http://www.dnr.state.mn.us/lands_minerals/aggregatemaps.html The dataset is also available as aggregate resource data layers stored at drive:\data\resource on the CD (where 'drive' is the CD reader or writer drive on the PC). The datasets include data on sand and gravel potential, crushed stone potential, overburden model source points, field observations, aggregate pits and quarries, County Well Index (CWI) data sources, field observation's sieve database, and MN DOT ASIS pit quality database. In addition, selected Mille Lacs aggregate resource datasets can be viewed in the Aggregate Resource Mapping Program's Aggregate Mapper at: http://www.dnr.state.mn.us/lands_minerals/aggregate_maps/online_maps/index.html Aggregate Mapper allows users with little to no GIS experience the ability to work with GIS data. The site can display spatial and tabular aggregate resource data such as sand and gravel potential, crushed stone potential, field observations, and gravel pits. This information can be overlaid on a variety of reference information from Web Mapping Services (WMS) sources like 1:24,000-scale DRGs (digital topographic maps), 1991 black-and-white air photos, and 2003-04 Farm Service Agency color air photos.
Online Linkage | Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above.
Section 7 | Metadata Reference Information | Top of full metadata | Top of page
Metadata Date | 2008
Contact Person Information | Aggregate Resource Mapping Program, Industrial Minerals Geologist or GIS Specialist Minnesota Department of Natural Resources, Division of Lands and Minerals 500 Lafayette Road St. Paul, MN 55155-4045 Phone: 651-259-5959 FAX: 651-296-5939 E-mail: aggregate.map@dnr.state.mn.us
Metadata Standard Name | Minnesota Geographic Metadata Guidelines
Metadata Standard Version | 1.2
Metadata Standard Online Linkage | http://www.lmic.state.mn.us/gc/stds/metadata.htm

This page last updated: 2008