Minnesota's Original Public Land Survey (PLS) Maps - Conversion to Digital Images (TIFF, JPEG and PDF formats)

This page last updated: 07/21/2006
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator Minnesota Land Management Information Center
Abstract Currently housed at the Office of the Secretary of State are Minnesota's original public land survey plats which were created during the first government land survey of the state by the U.S. Surveyor General's Office during the years 1848 to 1907. This collection of more than 3,600 maps includes later General Land Office (GLO) and the Bureau of Land Management (BLM) maps - up to the year 2005.

Minnesota's survey plat maps serve as the fundamental legal records for real estate in the state; all property titles and descriptions stem from them. They also serve as an essential resource for surveyors and as an analytical tool for the state's physical geography prior to European settlement. Finally, they serve as a testimony to years and years of hard work by the surveying community, often under challenging conditions.

In recent years the deteriorating physical condition of the older maps and the needs of technologically more sophisticated researchers, who require access to the maps, have made handling the original paper records increasingly less practical. To meet this challenge, the Office of the Secretary of State, the State Archives of the Minnesota Historical Society, the Minnesota Department of Transportation, the Department of Administration's Land Management Information Center and the Minnesota Association of County Surveyors collaborated in a digitization project which produced high quality (800 DPI), 24 bit color images of the maps in standard TIFF, JPEG and PDF formats - nearly 1.5 terabytes worth of data. Funding was provided by the Minnesota Department of Transportation. Twelve new maps were added to the collection in June, 2006.
Browse Graphic View a sample of the data.
Time Period of Content Date
Currentness Reference The original map documents (3,609) were scanned and saved in a variety of digital formats (TIFF, JPEG and PDF) formats during the period of May through August, 2003. These maps range in date from 1848 through 2005.

Twenty-nine images were added or updated in the collection in early June, 2006.
Access Constraints None
Use Constraints These images have NOT been certified by the Minnesota Office of the Secretary of State as exact, digital copies of the original source documents. These images are NOT geo-referenced.
Distributor Organization Land Management Information Center
Ordering Instructions Electronic PDF files of all images are available for download through an interactive selection tool at: www.lmic.state.mn.us/glo. Additional digital formats (JPEG) and media (paper, CD, DVD) will be available at a later date. For more information, contact John Hoshal using the contact information listed above.
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

Minnesota's Original Public Land Survey (PLS) Maps - Conversion to Digital Images (TIFF, JPEG and PDF formats)

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 Minnesota Land Management Information Center
Title Minnesota's Original Public Land Survey (PLS) Maps - Conversion to Digital Images (TIFF, JPEG and PDF formats)
Abstract Currently housed at the Office of the Secretary of State are Minnesota's original public land survey plats which were created during the first government land survey of the state by the U.S. Surveyor General's Office during the years 1848 to 1907. This collection of more than 3,600 maps includes later General Land Office (GLO) and the Bureau of Land Management (BLM) maps - up to the year 2005.

Minnesota's survey plat maps serve as the fundamental legal records for real estate in the state; all property titles and descriptions stem from them. They also serve as an essential resource for surveyors and as an analytical tool for the state's physical geography prior to European settlement. Finally, they serve as a testimony to years and years of hard work by the surveying community, often under challenging conditions.

In recent years the deteriorating physical condition of the older maps and the needs of technologically more sophisticated researchers, who require access to the maps, have made handling the original paper records increasingly less practical. To meet this challenge, the Office of the Secretary of State, the State Archives of the Minnesota Historical Society, the Minnesota Department of Transportation, the Department of Administration's Land Management Information Center and the Minnesota Association of County Surveyors collaborated in a digitization project which produced high quality (800 DPI), 24 bit color images of the maps in standard TIFF, JPEG and PDF formats - nearly 1.5 terabytes worth of data. Funding was provided by the Minnesota Department of Transportation. Twelve new maps were added to the collection in June, 2006.
Purpose Minnesota's Public Land Survey maps were converted to digital imagery due to:

1. Protect the original maps from further deterioration.
2. Meet the needs of the more technologically sophisticated researchers by providing direct access to digital images.
3. Provide greater public access to the maps and the information they convey.
Time Period of Content Date
Currentness Reference The original map documents (3,609) were scanned and saved in a variety of digital formats (TIFF, JPEG and PDF) formats during the period of May through August, 2003. These maps range in date from 1848 through 2005.

Twenty-nine images were added or updated in the collection in early June, 2006.
Progress Complete
Maintenance and Update Frequency Unknown
Spatial Extent of Data Minnesota, Statewide
Bounding Coordinates -97.5
-89.0
49.5
43.0
Place Keywords Minnesota, Statewide, Township, Range
Theme Keywords Original Survey Maps, GLO Maps, Plat Maps, Public Land Survey, Cultural Features, General Land Office
Theme Keyword Thesaurus
Access Constraints None
Use Constraints These images have NOT been certified by the Minnesota Office of the Secretary of State as exact, digital copies of the original source documents. These images are NOT geo-referenced.
Contact Person Information Linda Crawley,
Minnesota Office of The Secretary of State
180 State Office Building
St. Paul, Minnesota 55155
Phone: 651-201-1346
FAX: 651-215-0683
E-mail: Linda.Crawley@state.mn.us
Browse Graphic View a sample of the data.
Browse Graphic File Description A portion of Township 48, Range 16 W. (Jay Cook State Park) at 800 DPI, dated 1858 (MHS ID: 390)
Associated Data Sets 1. The original survey maps (paper, linen, etc.,) of Minnesota are currently housed at the Minnesota Office of the Secretary of State.
2. The original surveyors field notes are housed at the Minnesota Historical Society
3. GIS files derived from original survey information are available from the Minnesota Department of Natural Resources:
a.) Bearing trees used as references of landmarks during the original Minnesota Public Land Survey http://deli.dnr.state.mn.us/metadata/full/btreept3.html
b.) Public Land Survey Corners with Presettlement Vegetation information - http://deli.dnr.state.mn.us/metadata/full/btvegpt3.html
c.) Marschner's Original Presettlement Vegetation Map of Minnesota - http://deli.dnr.state.mn.us/metadata/full/prvegpy1.html

 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy
Logical Consistency
Completeness Every effort was made to ensure that all available PLS plat maps for Minnesota were scanned and that every township in the state was accounted for. For townships in adjacent states that border Minnesota, please contact the appropriate state agency.
Horizontal Positional Accuracy
Lineage Step 1. MAP INVENTORY AND PROJECT MANAGEMENT

The digitization process began first with an inventory of the map collection currently stored at the Minnesota Office of the Secretary of State (SOS). The inventory was conducted by the Minnesota Historical Society's (MHS) State Archives staff during the summer of 2002. Each map was examined and assigned (and marked - on the back) a unique MHS ID.

Step 2. SCANNING

In late 2002, the Minnesota Department of Transportation (Mn/DOT) contracted with the Minnesota Department of Administration's Land Management Information Center (LMIC) to prepare the scanning bid specifications (working with Administration's Contract Management Division), oversee the scanning process and provide final QA/QC support and create PDF versions of the scanned maps. A contract to scan the maps was awarded to:

Backstage Library Works
(prior to 2005 - Access Imagery Inc.)
1180 South 800 East
Orem, UT 84097

Tel: 1-800-316-2759

Access Imagery performed all scanning at the Office of the Secretary of State. Access Imagery's project manager was Scott Wheelhouse; principal scanning operator was Lee Ann Lavender.

During the period of May through July of 2003, Access Imagery Inc. scanned 3,605 maps using the following equipment and specifications:

Files: 3, 605 (of 3,609) maps were scanned by Access Imagery Inc.

Scanner: Vidar TruScan Atlas Color Scanner, 40 wide-format scanner
4WD document transport (top and bottom traction)
Geometric accuracy of the document transport mechanism = +/-0.10%
3 CCD Cameras - 4 rows of sensors per CCD (R/G/B/Grayscale)
5333 pixels per CCD row
Direct optical path from scan aperture to cameras, no mirrors
SCSI-2 interface

Scanner Software: Vidar TruScan2 ver. 1.2.4.5 with Vidar SCSI Toolkit ver. 2.2

Resolution: 800 DPI horizontal (interpolated) x 800 DPI vertical (optical)

Color Output: scanned at 36-bit RGB, color output = 24-bit RGB

Product #1: TIFF images

File Processing - TIFF: Each image was de-skewed using the Image >
Rotate Canvas > Arbitrary option within Adobe PhotoShop 7. The measure
tool allows the user to mark a vertical or horizontal line and automatically
populates the rotate option with the appropriate correction value.

File Storage - TIFF: Images were saved on local hard drives and later written to DVD (two copies) using a Primera Bravo Disc Publisher and Veritas' Prassi PrimoDVD ver. 2.0.837 software. DVD Media was Mitsui 4x speed, 4.7GB, white, inkjet printable, Ver. 2.0 spec, general purpose, silver DVD-R (Mitsui Part# 00041752). DVDs were labeled using a SureThing CD Labeler, Primera Edition, ver. 3.11.

Product #2: JPEG images

File Processing: JPEG: Using the TIFF file as the source, Access Imagery Inc. prepared a JPEG version of each image using the following procedures:

Using Adobe PhotoShop 7.0, an Unsharp Mask (USM) was applied to each TIFF image. USM settings could vary from map to map, as the appropriate level of USM is subjective. Baseline settings are given, with probable ranges in parentheses.

Amount: 300% (200% - 500%)
Radius: .3 pixels (.3 - .5 pixels)
Threshold: 0 levels

The enhanced image was then saved in a JPEG format using a Medium (5) compression.

File Storage - JPEG: Images were saved on a Maxtor 250 gigabyte portable hard drive and later written to DVD (four copies) using a Primera Bravo Disc Publisher and Veritas' Prassi PrimoDVD ver. 2.0.837 software. DVD Media were Mitsui 4x speed, 4.7GB, white, inkjet printable, Ver. 2.0 spec, general purpose, silver DVD-R (Mitsui Part# 00041752). DVDs were labeled using a SureThing CD Labeler, Primera Edition, ver. 3.11.

Step 3. QA/QC

Access Imagery Inc.: All TIFF and JPEG images were reviewed for quality purposes prior to being burned to a DVD. Each of the 291 DVD-Rs containing TIFF images were verified by the Disc Publisher software with the exception of the last 35 which were manually loaded on a separate PC and visually reviewed for readability. This change was done to allow the burner to spend 100% of its time burning discs. A similar process was used for the 5 DVDs containing JPEG images.

LMIC: A random sample (~2%) of TIFF and JPEG images produced by Access Imagery was conducted by staff. This process included opening the file with Adobe Photoshop 6, enlarging the image (to actual pixel size) and panning around the image to ensure it met the quality specifications. During this review process, 15 corrupt DVDs containing TIFF images were discovered. Access Imagery staff returned to Minnesota in July, 2003 to rescan the affected maps. Corrected TIFF and JPEG DVDs were delivered to LMIC in early August and re-checked.

Step 4. MISCELLANEOUS SCANNING:

A total of 33 maps were scanned by three other organizations (see the database for TIFF image source):

A. During the quality control process conducted by LMIC in early August, 2003, staff discovered that one map had not been scanned by Access Imagery staff. To save time, the map was sent to Historical Information Gatherers located in the Twin Cities and scanned using the following equipment and specification:

Historical Information Gatherers, Inc.
1589 Highway 7, Suite B-2
Hopkins, MN 55305

Tel: 952-253-2004

File: t101r45w5fi0.tif (Township 101, Range 45 West, 5th Principal Meridian)

Scanner: Titan Atlas 12mm Color Scanner consisting of Tri-linear CCD arrays

Scanning software: Vidar TruScan version 1.4.2

Resolution: Optical 400 dpi (horizontal / vertical). The image was interpolated to be 500 dpi (horizontal / vertical)

Color output : 24 bit

Product #1: TIFF (unaltered)

File Processing (TIFF): LMIC staff cropped the raw TIFF file from HIG using Adobe Photoshop 6. No de-skewing was performed.

File Storage - TIFF: Images were saved on a local hard drive and later written to a DVD (two copies) using a Primera Composer Pro DVD writer, Prassi version 2 software. DVD Media was Mitsui 4x speed, 4.7GB, white, inkjet printable, general purpose, silver DVD-R (Mitsui Part# 00041752). DVDs were labeled using a Primera's Signature Pro labeler.

Product #2: JPEG

File Processing JPEG: LMIC staff used Adobe PhotoShop 6.0 to create the JPEG version. First a Sharpen filter (regular) was applied to the cropped TIFF file and saved as a JPEG (medium; Level 5).

File Storage - JPEG: Images were saved on a Maxtor 250 gigabyte portable hard drive and later written to a DVD (four copies) using a Primera Composer Pro DVD writer, Prassi version 2 software. DVD Media was Mitsui 4x speed, 4.7GB, white, inkjet printable, general purpose, silver DVD-R (Mitsui Part# 00041752). DVDs were labeled using a Primera's Signature Pro labeler.

B. During the inventory conducted by MHS staff and subsequent work performed by Access Imagery, it became apparent that the original survey maps for three townships in Minnesota were missing from the Office of the Secretary of State's map drawers. To complete the scanning project, hand drawn duplicates housed at the Minnesota Department of Natural Resources were scanned by MHS staff using the following specifications.

Minnesota Historical Society (MHS)
345 Kellogg Blvd. West
St. Paul, MN 55102-1906

Files:

t041r23w4fi01 (Township 41, Range 23 West, 4th Principal Meridian)
t156r51w5fi01 (Township 156, Range 51 West, 5th Principal Meridian)
t160r35w5fi01 (Township 160, Range 35 West, 5th Principal Meridian)

Scanner: Zeutschel Omniscan 5000, CCD-line with 5150 pixels

Scanning software: Omniscan 5.0

Resolution: Optical 300 dpi (horizontal / vertical). No interpolation was performed.

Color output : 8 bit (256 levels) Grayscale

Product #1: TIFF (unaltered)

File Processing - TIFF: LMIC staff cropped the raw TIFF file from HIG using Adobe Photoshop 6. No de-skewing was performed.

File Storage - TIFF: Images were saved on local hard drives and later written to a DVD (four copies) using a Primera Composer Pro DVD writer, Prassi version 2 software. DVD Media was Mitsui 4x speed, 4.7GB, white, inkjet printable, general purpose, silver DVD-R (Mitsui Part# 00041752). DVDs were labeled using a Primera's Signature Pro labeler.

Product #2: JPEG

File Processing - JPEG: To create the JPEG and PDF versions, LMIC staff applied a Sharpen filter (regular) to the cropped TIFF file which was then saved in a JPEG (medium; Level 5) format.

File Storage - JPEG: Images were saved on a Maxtor 250 gigabyte portable hard drive and later written to a DVD (four copies) using a Primera Composer Pro DVD writer, Prassi version 2 software. DVD Media was Mitsui 4x speed, 4.7GB, white, inkjet printable, general purpose, silver DVD-R (Mitsui Part# 00041752). DVDs were labeled using a Primera's Signature Pro labeler.

QA/QC: LMIC staff reviewed each image type during processing and publishing on DVD.

C. In mid-2004 the Land Management Information Center created a web site that allowed users to easily view and download the images: www.lmic.state.mn.us/chouse/GLO. Since then, users have identified approximately 17 map images that were incorrectly named or were missing from the collection. Furthermore, at the request of the Minnesota Office of the Secretary of State, 12 new map images (as noted below) were added to the collection. They included a number of re-surveys and numerous island surveys. Inventory issues were corrected and additions made to the on-line collection in early June, 2006. Work was performed by LMIC staff using scanning equipment located at:

Minnesota Department of Transportation
395 John Ireland Boulevard
St. Paul, MN 55155-1899

Images by county:

Becker County
t141r38w5fd05 (Township 141, Range 38 West, 5th Principal Meridian) (NEW!)

Beltrami County
t146r33w5fi01 (Township 146, Range 33 West, 5th Principal Meridian)

Blue Earth County
t108r27w5fi01 (Township 108, Range 27 West, 5th Principal Meridian)
t108r27w5fm02 (Township 108, Range 27 West, 5th Principal Meridian)

Clearwater County
t143r37w5fd04 (Township 143, Range 37 West, 5th Principal Meridian) (NEW!)
t143r37w5fd05 (Township 143, Range 37 West, 5th Principal Meridian) (NEW!)
t143r37w5fd06 (Township 143, Range 37 West, 5th Principal Meridian) (NEW!)
t143r37w5fd07 (Township 143, Range 37 West, 5th Principal Meridian) (NEW!)
t143r37w5fd08 (Township 143, Range 37 West, 5th Principal Meridian) (NEW!)

Kanabec County
t041r22w4fi01 (Township 41, Range 22 West, 4th Principal Meridian)
t041r23w4fi01 (Township 41, Range 23 West, 4th Principal Meridian)

Kandiyohi County
t117r33w5fi01 (Township 117, Range 33 West, 5th Principal Meridian)
t117r33w5fm02 (Township 117, Range 33 West, 5th Principal Meridian)

Koochiching County
t158r26w5fi03 (Township 158, Range 26 West, 5th Principal Meridian) (NEW!)
t158r26w5fi04 (Township 158, Range 26 West, 5th Principal Meridian) (NEW!)
t158r26w5fi05 (Township 158, Range 26 West, 5th Principal Meridian) (NEW!)
t158r26w5fi06 (Township 158, Range 26 West, 5th Principal Meridian) (NEW!)

Lake County
t061r10w4fi01 (Township 61, Range 10 West, 4th Principal Meridian)
t064r10w4fi01 (Township 64, Range 10 West, 4th Principal Meridian)

Marshall County
t156r51w5fi01 (Township 156, Range 51 West, 5th Principal Meridian) (NEW!)

Nicollet County
t108r27w5fi01 (Township 108, Range 27 West, 5th Principal Meridian)
t108r27w5fm02 (Township 108, Range 27 West, 5th Principal Meridian)

Saint Louis County
t062r12w4fi01 (Township 62, Range 12 West, 4th Principal Meridian)
t062r16w4fi01 (Township 62, Range 16 West, 4th Principal Meridian)
t062r16w4fl02 (Township 62, Range 16 West, 4th Principal Meridian)
t062r16w4fl03 (Township 62, Range 16 West, 4th Principal Meridian)
t063r12w4fi01 (Township 63, Range 12 West, 4th Principal Meridian)
t063r12w4fm02 (Township 63, Range 12 West, 4th Principal Meridian)

Todd County
t132r33w5fi01 (Township 132, Range 33 West, 5th Principal Meridian) (NEW!)

Scanner: HP 4200 scanner

Resolution: Optical 800 dpi (horizontal / vertical). No interpolation was performed.

Color output: 24 bit

Product #1: TIFF images (unaltered)

File Processing - TIFF: LMIC staff cropped the raw TIFF file from MnDOT using Adobe Photoshop Elements. Image with no color information were converted to grey scale.

File Storage - TIFF: Images were saved on local hard drives. The will be written to DVD's at a later date.

Product #2: TIFF images (altered)

File Processing - TIFF: LMIC staff de-skewed images as needed with the resulting images being 600 dpi.

File Storage - TIFF: Images were saved on local hard drives. The will be written to DVD's at a later date.

Product #3: JPEG and PDF image

File Processing - TIFF: To create the JPEG and PDF versions, LMIC staff applied a Sharpen filter (regular) to the processed images using Adobe Photoshop Elements. Theses image were saved to a JPEG (medium; Level5) format and than the PDF format using the JPEG.

File Storage - Images were saved on local hard drives. The will be written to DVD's at a later date.

Step 5. PDF IMAGE CREATION (Original Images from 2002)

Files: All 3,609 JPEG images were converted by LMIC staff from a JPEG to a PDF format.

File Processing PDF: Two programs were used to convert the JPEG images a PDF format. JPG2PDF (a shareware product developed by SANFACE Software © Version 2.4, 25th April 2002) was used to convert 3,369 JPEG images. Adobe PhotoShop 6.0 was used to convert 240 JPEG images using a medium (Level 5) compression.

File Storage - PDF: Images were saved on a Maxtor 250 gigabyte portable hard drive and later written to a DVD (four copies) using a Primera Composer Pro DVD writer, Prassi version 2 software. DVD Media was Mitsui 4x speed, 4.7GB, white, inkjet printable, general purpose, silver DVD-R (Mitsui Part# 00041752). DVDs were labeled using a Primera's Signature Pro labeler.

QA/QC: LMIC staff visually reviewed 2% random sample of 3,609 PDF images. All 3,609 PDF images were opened with Adobe PhotoShop 6.0 in a batch operation.
Source Scale Denominator
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment TIFF
Geographic Reference for Tabular Data
Spatial Object Type Raster
Vendor Specific Object Types
Tiling Scheme Public Land Survey Township
 
Section 4 Spatial Reference Information Top of full metadata Top of page
Horizontal Coordinate Scheme
Ellipsoid
Horizontal Datum
Horizontal Units
Distance Resolution
 
Section 5 Entity and Attribute Information Top of full metadata Top of page
Entity and Attribute Overview The file is an image made up of a combination of features arranged cartographically. The individual elements such as roads and section lines cannot be extracted from the image. See the lineage section of this document, step 1, for a description of the image attributes.
Entity and Attribute Detailed Citation
 
Section 6 Distribution Information Top of full metadata Top of page
Publisher Minnesota Office of the Secretary of State and Minnesota Department of Administration, State and Community Services - Land Management Information Center
Publication Date 2004
Contact Person Information John Hoshal
GIS Project Services Supervisor
Land Management Information Center
300 Centennial Building; 658 Cedar Street
St. Paul, Minnesota 55155
Phone: 651-201-2482
FAX: 651-296-3698
E-mail: John.Hoshal@state.mn.us
Distributor's Data Set Identifier
Distribution Liability Limitations
Although extensive effort has been made to produce error free and complete data, all geographic information has limitations due to the scale, resolution, date and interpretation of the original source materials. You should consult available data documentation (metadata) for these particular data to determine their limitations and the precision to which they depict distance, direction, location or other geographic characteristics. These data may be subject to periodic change without prior notification.

No Warranty
These data are provided as is, without any warranty whatsoever, including but not limited to any warranty as to their performance, merchantability, or fitness for any particular purpose.

Liability
The entire risk as to the results of the use of these data is assumed by the user. LMIC is not responsible for any interpretation or conclusions based on these data made by those who acquire or use it. LMIC shall not be liable for any direct, indirect, special, incidental, compensatory or consequential damages or third party claims resulting from the use of these data, even if LMIC has been advised of the possibility of such potential loss or damage. In States that do not allow the exclusion or limitation of incidental or consequential damages, you may not use these data.

Redistribution Conditions
In obtaining these data from LMIC, it is understood that you and/or your organization have the right to use them for any internal purpose. If you modify them, you should document those changes in a metadata record that should accompany all redistributed data. If you transmit or provide these data in any form to another user, the data MUST be accompanied by a copy of this disclaimer and all documentation provided with the original data set including the full metadata record.

Data Delivered on Electronic Media
If these data have been requested from LMIC on magnetic media, CD-ROM or any other physical media, LMIC will deliver this product in the computer-readable format agreed upon with the requestor. LMIC will re-issue these data if they are determined unreadable by correctly adjusted computer input devices, or when the medium is delivered in a damaged condition. Requests for re-issue of this digital data product must be made within 30 days of the date shipped from LMIC.
Transfer Format Name JPEG, PDF
Transfer Format Version Number
Transfer Size
Ordering Instructions Electronic PDF files of all images are available for download through an interactive selection tool at: www.lmic.state.mn.us/glo. Additional digital formats (JPEG) and media (paper, CD, DVD) will be available at a later date. For more information, contact John Hoshal using the contact information listed above.
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 07/21/2006
Contact Person Information John Hoshal, GIS Project Services Supervisor
Land Management Information Center
300 Centennial Building; 658 Cedar Street
St. Paul, Minnesota 55155
Phone: 651-201-2482
FAX: 651-296-3698
E-mail: john.hoshal@state.mn.us
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.1
Metadata Standard Online Linkage http://www.lmic.state.mn.us/gc/stds/metadata.htm


This page last updated: 07/21/2006