Lower Coast Fork Willamette River
Willamette Basin, Lane County
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S.Richardson, J. Berg
Western Oregon University, Earth Science Department
Introduction
Lower Coast Fork Willamette River Subbasin
Soils
Lower Coast Fork Willamette River Subbasin
Bedrock
Lower Coast Fork Willamette River Subbasin
on Vegetation
Lower Coast Fork Willamette River
Roads & Bedrock
Lower Coast Fork Willamette River Wetlands
A look at a specific subbasin.
The watershed addressed in this
specific area is the Lower Coast Fork
Willamette River Subbasin. It is
located in Lane county, Oregon. This
specific poster will look at the
vegetation, wetlands, and forest
growth in the area.
The definition of a watershed is the
drainage area of an area. So this
watershed includes many tributary
streams that run down slope to join a
main water source.
Lower Middle Fork Willamette River
Mount Pisgah
Lower Coast Fork Willamette River
Camas Swale
Legend
Geology
Legend
UNIT_AGE
RiversAndStreams
Holocene
ORDER_
Late Eocene to Oligocene
1
Middle Eocene
Oligocene to Miocene
2
3
4
5
0 0.5 1
2
3
Miles
4
6
Soils
FEATSYM
GRA
MPI
ROC
Legend
®
RiversAndStreams
ORDER_
1
2
3
4
5
6
Geology
STN
WET
<all other values>
0 0.5 1
2
3
Miles
4
Oligocene(?) to Pliocene
®
Pleistocene to Holocene
Tertiary
0 0.5 1
2
RiversAndStreams
ORDER_
1
2
3
4
3
Miles
4
®
0 0.5 1
2
360,046,326.8 Square Meters
Total Drainage area
(sq. kilometers)
360.1 Square Kilometers
Total Length of Watershed
(kilometers)
23.05 kilometers
Total Width of Watershed
(kilometers)
22.66 kilometers
Watershed Length to Width Ratio
1.01:1
Total Number of Subbasins in Watershed
13
Average Area of Subbasins in Watershed
2.78 sq. kilometers
Total # of Stream Segments/Tributaries in
Watershed
1247
Total # of First Order Stream Segments
631
Total # of Second Order Stream
Segments
323
Miles
4
0 0.5 1
Legend
®
ORDER_
1
2
3
5
4
6
5
2
3
Miles
4
Legend
RiversAndStreams
6
Total Drainage Area
(sq.meters)
3
Lower Coast Fork Willamette River Flood History
&
Forest Second Growth
RiversAndStreams
®
ORDER_
1
2
3
4
5
6
Lower Coast Fork Willamette River Subbasin
The Coast Fork Willamette is located
in the southern most portion of the
Willamette Watershed. The Coast
Fork and Middle Fork converge to
make the mainstem Willamette at
rivermile 187. The subbasin’s 666
square miles are primarily forested,
with agriculture and urban land uses
near the mainstem.
!
Goshen
!
!
!
!
Pleasant Hill
Creswell
Walker
Saginaw
Legend
RiversAndStreams
ORDER_
1
Legend
2
RiversAndStreams
3
ORDER_
4
1
5
6
FloodHistory
Forest
SYMBOL
0
Second Growth Douglas Fir Forests
0 0.5 1
2
3
Miles
4
®
2
3
4
5
6
Roads
Raidroads
0 0.5 1
2
3
Miles
4
®
CONTACT
Name:
Organization:
Email:
Phone:
Website:
Oregon Spatial Data Library Catalog
http://spatialdata.oregonexplorer.info/GPT9/catalog/main/home.p
age
University of Oregon Libraries Downloadable GIS Data from the MAP
library
http://libweb.uoregon.edu/map/map_section/map_librarydata.ht
ml
Oregon Imagery Explorer
http://oregonexplorer.info/imagery/
National Resources Conservation Service Soil Data Mart
http://soildatamart.nrcs.usda.gov/
USGS Oregon Water Data Collection Program
http://or.water.usgs.gov/data_dir/datapage.html
USGS Western Region Geologic Information Server: Oregon Earth
Science Digital Publications and Datasets
http://wrgis.wr.usgs.gov/docs/geologic/or/oregon.html
Oregon Geospatial Enterprise Office (GEO) Geospacial Data
Clearinghouse
http://www.oregon.gov/DAS/EISPD/GEO/sdlibrary.shtml
Williamette Basin Explorer Data Collections