WSP03204

• File Number: 8460.500
• Description: Platte River Recovery Plan - SPDSS Studies ‎(see also 8483)‎
• Basin: South Platte
• Date: 1/1/1998
• Author: Colorado State Univ.
• Title: South Platte Mapping and Analysis Program ‎(SPMAP)‎ First Edition User Manual - Version 1.4
• Water Supply Pro - Doc Type: Publication

Version 1.4

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User Manual - South Platte Mapping and Analysis Program

~ County Boundaries Theme

United States Department of the Interior Geological Survey (USGS) digital line graphs (DLGs) data
were used to populate this theme. This was updated and clipped for the Water Division I boundaries by the
IDS Group at Colorado State University.

3.2.4 CroD Coveral!es

Agricultural data have been populated using TM (the!natic mapper) 25 meter multispectral satellite
images combined with an Indian Remote Sensing (IRS- I~) 5 meter panchromatic (grey scale) to delineate
the field boundaries and determine the crop type for each iparcel of land. This data will be improved and
some ground verification will take place as the project progresses.

3.2.5 Ditches. Lake. and Streams for Water District'64 11 :24k \

Digitized from USGS quads by the Colorado Division of Wildlife, Aquatics, provided to IDS by the
Northern Colorado Water Conservancy District.

3.2.6 Hvdrol!raDhv Theme 11:100k\

United States Department of the Interior Geological ~urvey (USGS) digital line graphs (DLGs)
hydrography network data were used to populate this theme. This theme contains water features as vectors
at I: I 00,000 resolution. These data are grouped by their main attribute function as: rivers; streams; ditches
and canals; aqueducts; wash and ephemeral drains; flumes, siphons, and penstocks; dams and weirs;
tunnels; and undefined water features.

The DLG characterization is obtained from the MAJqR and MINOR attribute definitions assigned by
the USGS (USGS, 1983). This was updated and clipped for the Water Division I boundaries by the IDS
Group at Colorado State University. Technical questions and comments can be addressed to the IDS Group
oc~~~~ '
Chief, National Mapping Division
U.S. Geological Survey
516 National Center
Reston, Virgina 22092

,
~ PLSS lTownshin. Ranl!~. and Section) Themes j

This coverage describes the Public Land Survey Syst~m for eastern Colorado including section,
township and range data obtained from USGS internet site at 30 minute resolution (I :62,000). Data was
obtained in DLG format for over 200 separate tiles covering the northeastern portion of Colorado, the
associated numeric codes were determined and the resulting coverages joined into one seamless coverage
according to the following steps:

1. Transformed original files into ARC/INFO format.

2. Joined the separate tiles into one coverage.

3. Edited the resultant coverage with the following steps: