There is no gage on Jenny Creek, so look for 200+ cfs on not-so-nearby
SF Little Butte Creek gauge. The upper limits of flow are not known: tread carefully over 500 cfs.
Check out the
description in Jason Rackley's excellent Oregon Kayaking site, but DO NOT use their shuttle directions.
And another
description at Into the Outside, DO use these shuttle directions.
The put-in is where Jenny Creek flows beneath Oregon Highway 66 east of Ashland and west of Keno. The take-out is in California immediately upstream of where the creek reaches Copco Road where there is a small parking area and trail to the creek, although the creek continues another half mile to its confluence with the Klamath River. This is 15.4 miles east of Interstate 5 at Hornbrook.