Ronald B. Zelt 2000 Version 1.0, March 26, 1999 map Cheyenne, Wyoming U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?sw_site_yell As part of the U.S. Geological Survey's National Water-Quality Assessment Program, an investigation of the Yellowstone River Basin study unit is being conducted to document status and trends in surface- and ground-water quality. Surface-water samples are collected from streams or lakes at specific sampling stations. Efficient quantification of the site-specific geographic and environmental characteristics at sampling stations requires a geospatial data set composed of the site locations that may be processed, together with other digital thematic maps (such as geology or land use), in a geographic information system (GIS). Digital data for 24 stream-sampling stations in the Yellowstone River Basin are included in this data release. The station locations were retrieved from the U.S. Geological Survey's National Water Information System where they are stored as latitude-longitude coordinate pairs referenced to the NAD27 datum. Selected station identifiers and geographic codes also were retrieved and are included in the data release. The U.S. Geological Survey (USGS) began full implementation of the National Water-Quality Assessment (NAWQA) program in 1991. The program objectives are to describe current water-quality conditions and trends over time; and to improve our understanding of the natural and human factors that affect water quality. The Yellowstone River Basin (YRB) is one of more than 50 areas to be studied for this program. Among the principal program activities, water, bed-sediment, and tissue samples are collected from streams or lakes at specific sampling stations and analyzed for a large suite of chemical and physical constituents. Water-quality characteristics at each station are influenced by the natural and cultural characteristics of the local area at the sampling station. Efficient quantification of the site-specific geographic and environmental characteristics at sampling stations requires a geospatial data set composed of the site locations that may be processed, together with other digital thematic maps (such as geology or land use), in a geographic information system (GIS). Digital data for 24 stream-sampling stations in the Yellowstone River Basin are included in this data release. The station locations were retrieved from the U.S. Geological Survey's National Water Information System where they are stored as latitude-longitude coordinate pairs referenced to the NAD27 datum. Selected station identifiers and geographic codes also were retrieved and are included in the data release. The data set included in this release is not comprehensive with respect to surface-water stations sampled for water quality constituents in the Yellowstone River Basin. Rather, it includes data only for the set of surface-water stations sampled for the U.S. Geological Survey's National Water-Quality Assessment investigation of the YRB during 1998-2001. The use of these sampling stations by an ongoing study does imply that changes or updates are likely during the course of active field data collection activities. Final steps in the data set production included the creation, population, and quality-control review of a feature-attribute table with selected station identifiers and geographic codes that were retrieved from the U.S. Geological Survey's National Water Information System. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ARC/INFO format, this metadata file may include some ARC/INFO-specific terminology. 20000317 date of update retrieval from NWIS Complete As Needed -110.92394679 -104.15611266 47.67833036 43.58748981 none water quality surface water gaging stations sampling stations inlandWaters none Yellowstone River Yellowstone River Basin Montana North Dakota Wyoming none These data are not for use at map scales greater than 1:24,000. Ronald B. Zelt U.S. Geological Survey Hydrologist mailing address

2617 E. Lincolnway, Suite B

Cheyenne WY 82001-5662 USA 1-888-275-8747 (307) 778-2764 rbzelt@usgs.gov Prefer e-mail. Prepared as part of the USGS National Water-Quality Assessment Program. Windows_NT, 4.0, Intel ARC/INFO version 7.2.1 Sharon B. Mathey, ed. 1990 U.S. Geological Survey Open-File Report 89-587 Reston, Virginia U.S. Geological Survey Point feature attribute values were inspected and found to be consistently coded as described in the Entity and Attribute Information. The use of these sampling stations by an ongoing study does imply that changes or updates are likely during the course of active field data collection activities. Point features present. The data set included in this release is not comprehensive with respect to surface-water stations sampled for water quality constituents in the Yellowstone River Basin. Rather, it includes data only for the set of surface-water stations sampled for the U.S. Geological Survey's National Water-Quality Assessment investigation of the YRB during 1998-2001. The approximate horizontal accuracy of most of the data is 1 arc second, assuming that the source materials meet National Map Accuracy Standards (as is stated on the source materials), and that USGS hydrographers correctly measured the station location using those source materials. Also, the feature attribute HACC contains the estimated horizontal accuracy for each station, as recorded in NWIS. The actual difference in position between the sampling stations and their digitized locations is unknown. U.S. Geological Survey 1999 tabular data Cheyenne, Wyoming U.S. Geological Survey 24,000 digital 20000317 date of access to NWIS Site File NWIS All spatial data included in this release. One retrieval of NWIS Site File records was made, from the Wyoming NWIS data base. Copies of records for Montana stations had been transferred earlier from the Montana NWIS data base by the Wyoming data-base manager. The tabular data retrieved were used to create a text file of geographic (lat.-long.) coordinate pairs. The Arc PROJECT command was used to transform those geographic coordinates to plane meters on the map projection used for the YRB project GIS library. These plane coordinates were used to create a GIS data set using Arc GENERATE command. A point-feature attribute table was created using Arc BUILD command. Additional attribute fields and values were added to the point-feature attribute table (PAT) using Arc JOINITEM command. These additional data had been retrieved from the NWIS Site File or from the YRB NAWQA surface-water planning spreadsheet. 19990326 First draft of metadata created by rbzelt using FGDCMETA.AML ver. 1.31 10/16/98 on ARC/INFO data set /gis/yell/data/sw_site_yell 19990326 Following technical review of the data set, an update of the station locations and attributes was found to be necessary due to several station records having been changed in the NWIS Site File. The process steps from 26 March 1999 were repeated to reproduce an updated point coverage. 20000317 Additional attribute fields and values were added to the point-feature attribute table (PAT) using Arc JOINITEM command. These additional data had been retrieved from the NWIS Site File or from the YRB NAWQA surface-water planning spreadsheet. Attribute table was checked against NWIS Site File records for quality control. Changes were made to two records in the PAT for the following reasons: > STAID COLUMN CHANGE RATIONALE > 06289000 HUC populated HUC value was missing in NWIS > 06324970 LAT corrected NWIS value known to be incorrect > 06324970 LON corrected NWIS value known to be incorrect 20000317 Metadata updated by rbzelt using selected information from FGDCMETA.AML ver. 1.33 07/15/99 on ARC/INFO data set \\wyo2dwychy\root\gis\yell\final\sw_site_yell 20000317 Point Point 24 Albers Conical Equal Area 29.5 45.5 -107.5 23 0.00000 0.00000 coordinate pair 1 1 Meters North American Datum of 1927 Clarke 1866 6378206.4 294.98 Polygon attributes are stored in INFO table SW_SITE_YELL.PAT, which has columns structured as follows: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 4 12 F 3 > 5 PERIMETER 4 12 F 3 > 9 SW_SITE_YELL# 4 5 B - > 13 SW_SITE_YELL-ID 4 5 B - > 17 STAID 15 15 C - > 32 LAT 6 6 C - > 38 LON 7 7 C - > 45 HACC 1 1 C - > 46 HDAT 5 5 C - > 51 SNAME 50 50 C - > 101 CNTY 3 3 C - > 104 HUC 8 8 I - > 112 ELEV 4 7 F 2 > 116 VDAT 6 6 C - > 122 SITEFILE 2 2 C - > 124 STATUS 3 3 C - > 127 TYPE 3 3 C - > 130 INDICATOR 3 3 C - > 133 MAP_NO 3 3 I - > 136 FSNETCODE 4 4 C - > 140 BSTNETCODE 4 4 C - > 144 ECONETCODE 4 4 C - > 148 SYNNETCODE 4 4 C - Attribute definitions (for NWIS data, the column code is given in paren's): > STAID - (C001) USGS Station ID defined in NWIS Site File; unique identifier. > > SITEFILE - State FIPS code for USGS NWIS site where data originated. > > LAT - (C009) Latitude of station, in degrees, minutes, seconds (ddmmss). > > LON - (C010) Longitude of station, in degrees, minutes, seconds (dddmmss). > > HDAT - (C036) Horizontal datum for LAT and LON, encoded as: > NAD27 = North American Datum of 1927. > > HACC - (C011) Horizontal accuracy for LAT and LON, encoded as: > S - the measurement is accurate to within 1 arc second. > F - the measurement is accurate to within 5 arc seconds. (This seems > to correspond to measurements made on 1:100,000-scale maps.) > T - the measurement is accurate to within 10 arc seconds. > M - the measurement is accurate to within 1 arc minute. > > SNAME - (C900) Station name. Abbreviations: YNP, Yellowstone National Park; > AB, above; NR, near; STA, station; L, Little; C, Creek. > > CNTY - (C008) County FIPS code, for county of station location. > > HUC - (C020) Hydrologic unit code, for unit containing station location. > > ELEV - (C016) Altitude of gage datum, in feet above datum. > > VDAT - (C022) Vertical datum for ELEV, encoded as: > NGVD29 = National geodetic vertical datum of 1929. > > FSNETCODE - Fixed-site network to which station belongs, encoded as: > FIX1 - NAWQA basic fixed-site sampling network. > FIX2 - NAWQA intensive fixed-site sampling network. > > BSTNETCODE - Bed sediment and tissue network to which station belongs, > encoded as: > BST1 - NAWQA occurrence survey for bed sediment and tissue. > BST2 - NAWQA spatial distribution survey for bed sediment and tissue. > > ECONETCODE - Ecological sampling network to which station belongs, > encoded as: > ECO1 - NAWQA ecological assessment, single-reach, single-year station. > ECO2 - NAWQA ecological assessment, single-reach, multi-year station. > ECO3 - NAWQA ecological assessment, multi-reach, single-year station. > ECO4 - NAWQA ecological assessment, multi-reach, multi-year station. > > STATUS - USGS activity status of station, encoded as: > A98 - active stream-gaging station as of water year 1998. > D - discontinued stream-gaging station. > I98 - water-quality inventory station as of water year 1998. > S98 - active water-quality sampling station as of water year 1998. > > TYPE - Station type class for NAWQA, encoded as: > INT - integrator site representing multiple environmental settings. > IND - indicator site representing a single environmental setting. > > INDICATOR - Indicator type class for NAWQA, encoded as: > ICR - agricultural watershed (cropland). > IMI - indicator of mineral resource area. > IFO - forested watershed. > IRE - rangeland watershed. > IRF - reference (relative to paired environmental setting indicator). > > SYNNETCODE - Synoptic-study network to which station belongs > (not populated in version 1.0) > > MAP_NO - map reference number for station, to improve legibility of maps. > none U.S. Geological Survey Ask USGS - Water Webserver Team mailing

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+sw_site_yell Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Export Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/sw_site_yell.e00.gz SDTS Full coverage zipped 1 http://water.usgs.gov/GIS/dsdl/sw_site_yell.tgz None. This dataset is provided by USGS as a public service. 20041108 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+sw_site_yell FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998