The Lower Coquille Watershed, part of the Coquille Basin is located in Southwest Oregon in Coos county (see figure 1). The Coquille River is the major river system which includes four stems: South Fork, Middle Fork, North Fork and East Fork. They join to become the Main Stem or Lower Coquille River.

Figure 7. Digital Elevation Model Quadrangles map (UTM Coordinate System)

Reference: Lower Coquille Watershed Maps: Geographic Information Systems: Oregon 1:24,000

Quadrangle Names http://libweb.uoregon.edu/map/map_section/quad_list.htm

Database: USGS: SAGEMAP http://sagemap.wr.usgs.gov/SearchData.aspx

Database: Oregon Geospatial Enterprise Office (GEO) http://www.oregon.gov/DAS/EISPD/GEO/alphalist.shtml#O

Lower Coquille Watershed Information site:

Coquille Watershed (HUC 17100305) http://www.or.nrcs.usda.gov/programs/csp/watershed-coquille.html

Lower Coquille Watershed Information site: Coquille Watershed Association http://www.coquillewatershed.org/ Lower Coquille Watershed Information site: Welcome to Inforain: Coquille Subbasin Working Atlas http://

www.inforain.org/coquille_atlas/index.html Theme: Class Web Site

http://www.wou.edu/las/physci/taylor/es341/es341_w09.htm http://terra.geo.orst.edu/ucgis/datasoft.htmlhttp://www.blm.gov/nstc/gis/GISsites.html http://www.fws.gov/data/statdata/ordata.html http://data.geocomm.com/catalog/US/61056/index.html http://or.water.usgs.gov/pubs_dir/Online/Cd/WRIR99-4036/GIS_FILES/index.html

http://data.geocomm.com/catalog/US/61056/430/index.html http://tin.er.usgs.gov/geology/state/state.php?state=OR http://www.google.com/Top/Science/Social_Sciences/Geography/Geographic_Information_Systems/Data/

http://gos2.geodata.gov/ http://www.oregon.gov/DAS/EISPD/GEO/alphalist.shtml http://nationalmap.gov/ http://soildatamart.nrcs.usda.gov/

Lower Coquille Watershed, Coos County, OregonPrepared by:

Chris Meyer and Alicia ThompsonES 341: Fundamentals of GIS, Winter 2009

Watershed Parameter

Total Drainage Area (sq. meter)= 269,258,378m²

Total Drainage Area (sq. km)= 269.25km²

Total length of Watershed (sq km)= 28.23km

Total width of Watershed (sq km)= 22.79km

Watershed Length/Width ratio= 1.23Total No. of Sub-basins in Watershed= 12Average Area of Sub-basins in Watershed= 22.43km²

Total No. Stream Segments or Tributaries in Watershed= 1613Total No. First Order Stream Segments= 815Total No. Second Order Stream Segments= 381First Order Stream Frequency (Total No. / Drainage Area sq. km)= 3.20 per km²

Physiographic

Figure 6. Digital Raster Grid Quadrangles map (UTM Coordinate System)

Figure 1. Map of Oregon with watershed location (UTM Coordinate System) Figure 9. Digital Elevation Model with

slope map (UTM Coordinate System)

Spatial Analyst

Minimum Watershed Elevation (feet)= 0

Maximum Watershed Elevation (feet)= 512

Minimum Slope (decimal degrees)= 0

Maximum Slope (decimal degrees)= 66.5

Figure 5. Digital Orthophoto Quadrangles map (UTM Coordinate System)

Figure 8. Vegetation map (UTM Coordinate System)

Figure 8. Climate map (UTM Coordinate System)

Figure 2. Watershed outlines and stream overlays (UTM Coordinate System)

Figure 4. Soil Map (UTM Coordinate System)

Figure 3. Geologic Map (UTM Coordinate System)

Hydrologic Summary

General Geology

Watershed Location