River Kilometer Index (RKI) Mile Point files

This page last updated: 04/11/2007
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator Minnesota Department of Natural Resources
Abstract The River Kilometer Index (RKI) Mile Point files are mile point markers associated with the RKI stream trace data set.

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's 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 tributaries 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. Mile points were generated from the stream trace layers..

Stream traces and mile points are stored in coverages by DNR major watershed (corresponding to USGS 8-digit HUC codes). A secondary set of files stores only the trace of the major river and its mile points in each major watershed.
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.

Rivers are not all connected (for instance, a river flowing into another river at the point where the receiving river widens into a lake). This has a slight effect on mile point calculations.

Digitization of major river traces is coarse, reflecting the early date of the data preparation (mid-1970's). The digitization of tributary rivers more closely matches the linework on the base maps.

The mile point calculations are only as good as the original capture of the stream trace lines.
Distributor Organization Minnesota Land Management Information Center (LMIC)
Ordering Instructions RKI river mile and milepoint data are now downloadable from the LMIC ftp site as a zipfile (rki_all.zip). Data are arc export files organized by DNR Major Watersheds. ArcExport files and metadata are included. Also included in the zipfile is 'mnrivers' - a subset of major rivers of the state from RKI (stream traces only).
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

River Kilometer Index (RKI) Mile Point files

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 Department of Natural Resources
Title River Kilometer Index (RKI) Mile Point files
Abstract The River Kilometer Index (RKI) Mile Point files are mile point markers associated with the RKI stream trace data set.

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's 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 tributaries 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. Mile points were generated from the stream trace layers..

Stream traces and mile points are stored in coverages by DNR major watershed (corresponding to USGS 8-digit HUC codes). A secondary set of files stores only the trace of the major river and its mile points in each major watershed.
Purpose The purpose of the RKI Stream Trace and Mile Point data sets was to provide a river mapping and indexing system for the state of Minnesota.
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
Spatial Extent of Data State of Minnesota
Bounding Coordinates -97.5
-89.0
49.5
43.0
Place Keywords State of Minnesota
Theme Keywords inlandWaters, Rivers, Streams, River Kilometers, River Miles, Hydrography, Surface Water, Stream Trace, Mile Points, Mileposting, 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.

Rivers are not all connected (for instance, a river flowing into another river at the point where the receiving river widens into a lake). This has a slight effect on mile point calculations.

Digitization of major river traces is coarse, reflecting the early date of the data preparation (mid-1970's). The digitization of tributary rivers more closely matches the linework on the base maps.

The mile point calculations are only as good as the original capture of the stream trace lines.
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 Arc 7.1.1
Associated Data Sets REFERENCES: Stream Inventory and Data Retrieval System Program, DNR Office of Planning, 1981.

1.SIDRS Report 7001. Program Overview: The Development of a Statewide Hydrologic Reference System.
2.SIDRS Report 7004. River Kilometer Indexing System. Description of Software.
3.SIDRS Report 7005. River Kilometer Indexing System. Statistical Summary.

 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy
Logical Consistency
Completeness Covers rivers on the USGS 1:62,500 or 1:24,000-scale base map, as available in 1980-81.
Horizontal Positional Accuracy Not available
Vertical Positional Accuracy Not applicable
Lineage (1980-81) Original file creation.
DNR obtained from USEPA a set of river trace files for major rivers. These files had been created in the mid-1970s. Further processing of these files was done on a major watershed basis. The GIS system used was the Polygon Information Overlay System (PIOS), the ESRI predecessor to Arc/INFO. DNR staff digitized the remaining river traces on each 1:24,000 or 1:62,500 map sheet, and appended the information onto the EPA data. River kilometer points, and, later, mile points, were calculated by the system.

(1984) PIOS/ARC Conversion.

LMIC converted the files from PIOS to ARC/INFO. River mile points were calculated for each river trace and written to a separate point file. Because the river traces were not all connected, this was done by a specially-written program not part of the Arc/INFO tool set. Files at this time were UTM, Zone 15, NAD27, single precision, with a Y-shift of -4,700,000.

(1997) Conversion to NAD83.

LMIC converted all coverages to UTM, Zone 15 Extended, NAD83, double precision, unshifted.
Source Scale Denominator 24000
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment Arc 7.1.1
Geographic Reference for Tabular Data
Spatial Object Type Point
Vendor Specific Object Types Point
Tiling Scheme Data stored in DNR major watershed files; Major river points are stored in major river files for each major watershed
 
Section 4 Spatial Reference Information Top of full metadata Top of page
Horizontal Coordinate Scheme UTM
Ellipsoid GRS 1980
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 Rivers covers represent ALL rivers in a major watershed. They are named RIVERXX, where XX' is the DNR major watershed number. Major rivers covers represent ONLY the major river flowing through each major watershed (e.g., for DNR major watershed #29, the Cottonwood River Basin, the major rivers file would represent only the Cottonwood trace.) Major rivers Coverages are named MRIVXX', where XX' is the DNR major watershed number.

Mile points associated with the full stream trace covers (RIVERXX) are stored as RMILEXX, where XX' is the DNR major watershed number. Mile points associated with the major river within each major watershed (MRIVXX) are stored in MRMILEXX, where XX' is the DNR major watershed.

Major rivers which flow through more than one major watershed are named for the major watershed in which they originate. For example, the Mississippi is MRIV07, the Minnesota is MRIV22, the St. Croix is MRIV34, the Red is MRIV54, and the Rainy is MRIV72. River traces for these five large rivers in Minnesota have been pulled out into separate coverages and are NOT in the corresponding RIVERXX covers. Because the state's large rivers flow through many major watersheds and are only stored once (with the major watershed of origin), there is not an MRIV' coverage for every DNR major watershed. River Mile Point files are organized accordingly.

DNR major watershed names and numbers are as follows:
1 BAPTISM-BRULE *** 2 BEAVER-LESTER *** 3 ST. LOUIS *** 4 CLOQUET *** 5 BEARTRAP-NEMADJI *** 7 MISSISSIPPI HEADWATERS *** 8 LEECH LAKE *** 9 PRAIRIE-WILLOW *** 10 ELK-NOKASIPPI *** 11 PINE *** 12 CROW WING *** 13 REDEYE *** 14 LONG PRAIRIE *** 15 PLATTE-SPUNK *** 16 SAUK *** 17 CLEARWATER-ELK *** 18 CROW *** 19 SOUTH FORK CROW *** 20 TWIN CITIES *** 21 RUM *** 22 UPPER MINNESOTA *** 23 POMME DE TERRE *** 24 LAC QUI PARLE *** 25 HAWK-YELLOW MEDICINE *** 26 CHIPPEWA *** 27 REDWOOD *** 28 MIDDLE MINNESOTA *** 29 COTTONWOOD *** 30 BLUE EARTH *** 31 WATONWAN *** 32 LE SUEUR *** 33 LOWER MINNESOTA *** 34 UPPER ST. CROIX *** 35 KETTLE ** 36 SNAKE *** 37 LOWER ST. CROIX *** 38 RUSH-VERMILLION *** 39 CANNON *** 40 BUFFALO-WHITEWATER *** 41 ZUMBRO *** 42 LA CROSSE-PINE *** 43 ROOT *** 44 COON-YELLOW *** 46 UPPER IOWA *** 47 UPPER WAPSIPINICON *** 48 UPPER CEDAR *** 49 SHELL ROCK *** 50 WINNEBAGO *** 51 DES MOINES HEADWATERS *** 52 UPPER DES MOINES *** 53 EAST FORK DES MOINES *** 54 BOIS DE SIOUX ***
55 MUSTINKA *** 56 OTTER TAIL *** 57 UPPER RED *** 58 BUFFALO *** 59 ELM-MARSH *** 60 EASTERN WILD RICE *** 61 SANDHILL-WILSON *** 62 RED LAKES *** 63 RED LAKE RIVER *** 65 THIEF RIVER *** 66 CLEARWATER *** 67 GRAND MARAIS-RED *** 68 SNAKE *** 69 LOWER RED *** 70 TWO RIVERS *** 71 ROSEAU *** 72 RAINY HEADWATERS *** 73 VERMILLION *** 74 RAINY LAKE *** 75 UPPER RAINY *** 76 LITTLE FORK *** 77 BIG FORK *** 78 RAPID ** 79 LOWER RAINY *** 80 LAKE OF THE WOODS *** 81 UPPER BIG SIOUX *** 82 LOWER BIG SIOUX *** 83 ROCK *** 84 LITTLE SIOUX
Entity and Attribute Detailed Citation River Mile Point files have the following format:

DATAFILE NAME: RMILEXX.PAT
6 ITEMS: STARTING IN POSITION 1
COL ITEM NAME WDTH OPUT TYP N.DEC ALTERNATE NAME
1 AREA 8 18 F 5
9 PERIMETER 8 18 F 5
17 RMILEXX# 4 5 B -
21 RMILEXX-ID 4 5 B -
25 MN_STREAM_CODE 6 6 I -
31 RIVER_MILE_MARK 3 3 I -
** REDEFINED ITEMS **
25 MAJOR_WSHED_CODE 2 2 I -
27 RIVER_NUMBER 4 4 I -

DATA FIELD DEFINITIONS
AREA -- Standard ARC field - zero for point features
PERIMETER -- Standard ARC field - zero for point features
RMILEXX# -- Standard ARC field - internal point identifier
RMILEXX-ID -- Standard ARC field - point identifier
MN_STREAM_CODE -- River Number - A combination of the DNR Major watershed number for the river and the river number assigned to the river throughout its length. The river number portion of this code should be the same as the RIVERXX- ID on the corresponding RIVERXX stream trace file.
RIVER_MILE_MARK -- Number identifying the river mile

REDEFINED DATA FIELD DEFINITIONS
MAJOR_WSHED_CODE -- The DNR 2-digit major watershed number for the ARC. Code file is MAJOR23 or NAMES_81
RIVER_NUMBER -- The river number for the arc - should be the same as the RIVERXX-ID on the corresponding RIVERXX stream trace file

Format is identical in the MRMILEXX coverages.
 
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 Street
St. Paul, Minnesota 55155
Phone: 651.201.2488
FAX: 651.296.3698
E-mail: clearing.house@state.mn.us
Distributor's Data Set Identifier rkip
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 Arc Export
Transfer Format Version Number 7.1.1
Transfer Size 64 MB as zipfile
Ordering Instructions RKI river mile and milepoint data are now downloadable from the LMIC ftp site as a zipfile (rki_all.zip). Data are arc export files organized by DNR Major Watersheds. ArcExport files and metadata are included. Also included in the zipfile is 'mnrivers' - a subset of major rivers of the state from RKI (stream traces only).
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 04/11/2007
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
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: 04/11/2007