In springs, spring runs, and spring-fed creeks from Modoc and Lassen Counties in the upper Pit River drainage in ... [details]
In springs, spring runs, and spring-fed creeks to large rivers in the central and eastern Columbia River Gorge ... [details]
In springs and spring runs of the John Day River drainage, northeastern Oregon. [details]
Primarily in springs, spring runs, and spring-fed creeks of northern California in Shasta River drainages and ... [details]
Primarily in springs, spring runs, and small creeks in the southern Pit River system; possibly extending into ... [details]
In the lower Middle and Lower Deschutes River in central Oregon, and associated springs, spring runs and spring-fed ... [details]
In small creeks to large rivers primarily in coastal drainages from south-central Oregon to central California. [details]
In spring-fed creeks to large rivers and lakes, currently restricted to the Pit River system in Lassen, Shasta, and ... [details]