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This page last updated: 04/26/2011
Metadata created using Minnesota Geographic Metadata Guidelines
| Originator | Minnesota Land Management Information Center (LMIC) |
| Abstract | The MNRIVERS file represents stream centerline traces for 52 major rivers in Minnesota. These river traces were extracted from the DNR River Kilometer Index (RKI) Stream Trace files. MNRIVERS represents a generalization of the state's river network. |
| Browse Graphic | View a sample of the data. |
| Time Period of Content Date | 1981 |
| Currentness Reference | Matches content of USGS 1:24,000 and 1:62,500 quad maps available at the time the project was completed (1980-81). |
| Access Constraints | None |
| Use Constraints | Use should be consistent with the scale of origin and the capture methods of the dataset, as reported in the Data Quality Section. 1. Rivers are not all connected (for instance, a river flowing into another river at the point where the receiving river widens into a lake). Therefore, the file cannot be used for network applications without further processing. 2. Digitization of the traces of major rivers is coarse, reflecting the early date of the data preparation (mid-1970's). |
| Distributor Organization | Minnesota Land Management Information Center (LMIC) |
| Ordering Instructions | Clicking on the 'Online Linkage' enables the download of a self-extracting 'ZIP' file (with an .exe suffix) to the user machine. The .exe file contains the following: - Arc Export file (.e00) of the coverage - Associated data tables or code files (.txt or .e00 format) - Metadata (.htm) file for the dataset - NOTICE.RTF and NOTICE.TXT, the LMIC data liability notice. After downloading this self-extracting 'zip' file, simply execute (run) the file. For example, you can double click it from Windows Explorer or File Manager. Doing this will automatically extract the files described 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. |
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 (LMIC) | |||
| Title | Major River Centerline Traces in Minnesota, extracted from DNR River Kilometer Index (RKI) files | |||
| Abstract | The MNRIVERS file represents stream centerline traces for 52 major rivers in Minnesota. These river traces were extracted from the DNR River Kilometer Index (RKI) Stream Trace files. MNRIVERS represents a generalization of the state's river network. | |||
| Purpose | The purpose of the MNRIVERS file is to provide a generalized river mapping file for large-area representation. | |||
| Time Period of Content Date | 1981 | |||
| Currentness Reference | Matches content of USGS 1:24,000 and 1:62,500 quad maps available at the time the project was completed (1980-81). | |||
| Progress | Complete | |||
| Maintenance and Update Frequency | None planned | |||
| Spatial Extent of Data | Minnesota, Statewide | |||
| Bounding Coordinates | -97.5 -89.0 49.5 43.0 |
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| Place Keywords | Minnesota, Statewide | |||
| Theme Keywords | inlandWaters, Rivers, Streams, Hydrography, Surface Water, Stream Trace, RKI, Major Rivers, Stream Centerlines | |||
| Theme Keyword Thesaurus | ISO 19115 Topic Category | |||
| Access Constraints | None | |||
| Use Constraints | Use should be consistent with the scale of origin and the capture methods of the dataset, as reported in the Data Quality Section. 1. Rivers are not all connected (for instance, a river flowing into another river at the point where the receiving river widens into a lake). Therefore, the file cannot be used for network applications without further processing. 2. Digitization of the traces of major rivers is coarse, reflecting the early date of the data preparation (mid-1970's). |
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| Contact Person Information | Susanne Maeder,
GIS Data Coordinator Minnesota Land Management Information Center (LMIC) 300 Centennial Building; 658 Cedar Street St. Paul, Minnesota 55155 Phone: 651.201.2488 FAX: 651.296.3698 E-mail: clearing.house@state.mn.us | |||
| Browse Graphic | View a sample of the data. | |||
| Browse Graphic File Description | ||||
| Associated Data Sets | Associated Data: Full River Kilometer Index (RKI) river trace and mile point data sets References: 1. Stream Inventory and Data Retrieval Systems Program (SIDRS), DNR Office of Planning, 1981. SIDRS Report 7001: Program Overview: Development of a Statewide Hydrologic Reference System SIDRS Report 7004: River Kilometer Indexing System: Description of Software SIDRS Report 7005: River Kilometer Indexing System: Statistical Summary |
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| Section 2 | Data Quality Information | Top of full metadata | Top of page | |
| Attribute Accuracy | ||||
| Logical Consistency | There are gaps in the file (for instance, where a river flows into another river through a lake), which means that the file cannot be used as is for network applications. However, because it represents stream centerlines, the RKI file is the only existing Minnesota river trace file suitable for river length measurement. | |||
| Completeness | Covers 52 major rivers in Minnesota, on the USGS 1:62,500 or 1:24,000-scale base map, as available in 1980-81. | |||
| Horizontal Positional Accuracy | Report is qualitative only. A comparison by LMIC with other stream files available by 1990 (notably the USGS 1:100,000 DLG Hydrography layer) showed that, while the RKI file contained every stream tributary appearing on teh USGS base maps, the representations of the streams dating back to the EPA work in the mid-1970's were crude and did not capture all the sinuosity of the river as represented on the base map. The later digitizing of the smaller rivers by DNR did capture the linework as it appeared on the map. The DLG file captures the rivers are polygons where they appear as such on the base maps, and better captures stream sinuosity, but does not capture all rivers on the 1:24,000 map series, since a river length cutoff was applied in creating the file. Although the data was captured from 1:24,000-scale basemaps, the crudeness of the early digitizing means that the traces will not match the paper maps exactly. |
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| Lineage | The River Kilometer Index (RKI) Stream Trace Files are a set of arc covers representing centerlines of stream traces for Minnesota rivers. Digitizing was done by the Minnesota Department of Natural Resources in 1980-81. The base maps for the project were USGS 1:24,000 quadrangle maps where they were available, and 1:62,500 maps where the 1:24,000 maps had not been completed. Digitizing was done in PIOS, the ESRI predecessor to Arc/INFO. Before beginning this project, DNR obtained from the U.S. Environmental Protection Agency digital river trace files of major rivers which had been automated by an EPA contractor in an early attempt to build a REACH file. DNR used these base files, dating from the mid-1970's, then digitized in any tributoaries appearing on the 1:24,000 or 1:62,500 base maps which were not on the EPA files. LMIC converted the files from their original PIOS format into ARC/INFO format in 1984. Individual Major Rivers files from the DNR River Kilometer Index data set were appended together to create the MNRIVERS major river file. Major watershed numbers and river names were added to the file. Original Arc/INFO files were NAD27, UTM, Zone15, single precision, shifted. A double precision, unshifted version of the file was created. In 1997, the file was converted from NAD27 to NAD83. A full description of the lineage of the base RKI files used to create this coverage is in the metadata for the DNR River Kilometer Index Stream Trace Files. |
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| Source Scale Denominator | 24000 | |||
| Section 3 | Spatial Data Organization Information | Top of full metadata | Top of page | |
| Native Data Set Environment | Arc/INFO 7.1.1 | |||
| Geographic Reference for Tabular Data | ||||
| Spatial Object Type | Vector | |||
| Vendor Specific Object Types | Arcs | |||
| Tiling Scheme | None. Statewide Cover | |||
| 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 | ||||
| UTM Zone Number | 15E | |||
| Section 5 | Entity and Attribute Information | Top of full metadata | Top of page | |
| Entity and Attribute Overview | ||||
| Entity and Attribute Detailed Citation | DATAFILE NAME: MN_RIVERS.AAT 10 ITEMS: STARTING IN POSITION 1 COL ITEM NAME WDTH OPUT TYP N.DEC ALTERNATE NAME 1 FNODE# 4 5 B - 5 TNODE# 4 5 B - 9 LPOLY# 4 5 B - 13 RPOLY# 4 5 B - 17 LENGTH 4 12 F 3 21 MN_RIVERS# 4 5 B - 25 MN_RIVERS-ID 4 5 B - 29 MAJOR 2 2 I - 31 STREAM.NAME 30 30 C - 61 FLAG 1 1 I - DATA FIELD DAFINITIONS: FNODE# -- Arc internal variable - from node number TNODE# -- Arc internal variable - to node number LPOLY# -- Arc internal variable - left polygon number RPOLY# -- Arc internal variable - right polygon number LENGTH -- Arc internal variable - arc length in map units MN_RIVERS# -- Arc internal identifier MN_RIVERS-ID -- Arc identifier - assigned as equal to the MAJOR MAJOR -- DNR major watershed code for the river. If the river flows through more than one major watershed, it is assigned to code of the major watershed in which it originates (headwaters watershed). STREAM.NAME -- River Name FLAG. |
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| Section 6 | Distribution Information | Top of full metadata | Top of page | |
| Publisher | Minnesota Land Management Information Center (LMIC) | |||
| Publication Date | 1984 | |||
| Contact Person Information | Susanne Maeder GIS Data Coordinator Minnesota Land Management Information Center (LMIC) 300 Centennial Building; 658 Cedar Streeet St. Paul, Minnesota 55155 Phone: 651.201.2488 FAX: 651.296.3698 E-mail: clearing.house@state.mn.us |
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| Distributor's Data Set Identifier | mnrivers | |||
| 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. |
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| Transfer Format Name | Arc Export or Shapefile | |||
| Transfer Format Version Number | 7.1.1/ AV 3.2 | |||
| Transfer Size | 1.8 MB in self-extracting zip (.exe) file format; 7.6 MB as arc export file; 2.2 MB as shapefile | |||
| Ordering Instructions | Clicking on the 'Online Linkage' enables the download of a self-extracting 'ZIP' file (with an .exe suffix) to the user machine. The .exe file contains the following: - Arc Export file (.e00) of the coverage - Associated data tables or code files (.txt or .e00 format) - Metadata (.htm) file for the dataset - NOTICE.RTF and NOTICE.TXT, the LMIC data liability notice. After downloading this self-extracting 'zip' file, simply execute (run) the file. For example, you can double click it from Windows Explorer or File Manager. Doing this will automatically extract the files described above. |
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| 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 | 04/26/2011 | |||
| Contact Person Information | Susanne Maeder,
GIS Data Coordinator Minnesota Land Management Information Center (LMIC) 300 Centennial Building; 658 Cedar Street St. Paul, Minnesota 55155 Phone: 651.201.2488 FAX: 651.296.3698 E-mail: clearing.house@state.mn.us |
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| 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: 04/26/2011