USGS Scientific Investigations Report 2010–5016 Development of an Environmental Flow Framework for the McKenzie River Basin, Oregon

Table 2. Locations of study reaches in the McKenzie River basin, Oregon.

[Location of study reaches shown in figure 5. Upstream end river mile: River mile from the Willamette River confluence. A designated river mile was used as a flow point if there was no streamflow-gaging station within the reach]

Reach No.	River name	Upstream end description	Upstream end river mile	Downstream end description	Reach length (miles)
Upper basin
1	McKenzie	Below Trail Bridge Dam	81.8	McKenzie Bridge	13.7
2	McKenzie	McKenzie Bridge	68.1	South Fork McKenzie River confluence	8.4
Middle basin
3	South Fork McKenzie	Below Cougar Dam	4.5	McKenzie River confluence	4.5
4	McKenzie	South Fork McKenzie River confluence	59.7	Blue River confluence	2.6
5	Blue	Below Blue River Dam	1.5	McKenzie River confluence	1.5
6	McKenzie	Blue River confluence	57.1	Nimrod	6.1
7	McKenzie	Nimrod	51.0	Leaburg Dam	12.0
8	McKenzie	Leaburg Dam	39.0	Leaburg canal return flow	6.0
Lower basin
9	McKenzie	Leaburg canal return flow	33.0	Walterville canal entrance	5.0
10	McKenzie	Walterville canal entrance	28.0	Camp Creek confluence	7.3
11	McKenzie	Camp Creek confluence	20.7	Armitage State Park at I-5 bridge	13.5
12	McKenzie	Armitage State Park at I-5 bridge	7.2	Willamette River confluence	7.2