Fishing opportunities abound on the Clackamas, with adult salmon and steelhead migrating upriver almost year-round. In addition to fishing, PGE parks on the Clackamas offer camping, hiking, boating, scenic views and more.
To help plan a fishing trip or decide when to go salmon watching, understanding typical migration patterns for the most common fish species is important.
For up-to-date numbers, visit our Daily Fish Counts page. For fishing regulations and up-to-date opportunities, check out the Oregon Department of Fish and Wildlife .
Average run size*: 489 hatchery fish
Wild or hatchery: Hatchery
Where to find them: Downstream of North Fork Dam
Average size: 7 to 10 pounds
Spawning: January to February
Years in the ocean: 85 percent return after two years (“two-salt fish”)
More details: Summer steelhead are not native to the Clackamas River. The stocking of hatchery fish began in 1970.
Peak adult migration: January to April
Average run size*: 1,227 wild fish and 364 hatchery fish
Wild or hatchery: Both (mostly wild)
Where to find them: Wild winter steelhead migrate past PGE facilities into the upper Clackamas River and its tributaries. Hatchery fish remain downstream of North Fork Dam.
Average size: 8 to 12 pounds
Spawning: March to mid-June
Years in the ocean: 2 to 3 years
More details: Hatchery winter steelhead smolts are acclimated and released in the lower Clackamas River.
Peak adult migration: September and October
Average run size*: 2,324 wild fish, hatchery populations unknown
Wild or hatchery: Both (mostly wild)
Where to find them: Wild early run Coho migrate into the upper Clackamas River and its tributaries. Hatchery fish do not migrate above Eagle Creek, which is downstream of North Fork Dam.
Average size: 5 to 10 pounds
Spawning: October to November
Years in the ocean: 1.5 years
More details: Early run Coho are a naturalized run of hatchery origin fish. Hatchery Coho are reared at the Eagle Creek National Fish Hatchery.
Peak adult migration: November to January
Average run size*: 522 wild fish
Wild or hatchery: Wild
Where to find them: Late run Coho migrate into the upper Clackamas River and its tributaries.
Average size: 8 to 12 pounds
Spawning: January to April
Years in the ocean: 1.5 years
More details: While most of them spawn above North Fork Dam, there is some reproduction in the lower river.
Peak adult migration: April to July
Average run size: 1,834 wild fish and 1,857 hatchery fish
Wild or hatchery: Both
Where to find them: Wild spring chinook migrate into the upper Clackamas River and its tributaries. Hatchery spring chinook remain downstream of North Fork Dam.
Average size: 9 to 25 pounds
Spawning: September to October
Years in the ocean: 2 to 3 years
More details: Historically the Clackamas was home to large numbers of spring chinook, but commercial fishing and a failed fish ladder significantly reduced populations in the first half of the 20th century. Populations have been increasing in recent years thanks to improved fish passage and fishing regulation. Hatchery spring chinook are reared in the Clackamas Hatchery at McIver State Park.
Peak adult migration: September to October
Average run size*: Unknown
Wild or hatchery: Wild
Where to find them: Downstream of River Mill Dam
Average size: 20 pounds
Spawning: September to early November
Years in the ocean: 2 to 3 years
More details: Although fall chinook were once native to the Clackamas, present-day populations are believed to be descendants of a strain that was stocked until 1971.
Peak adult migration: September to October
Wild or hatchery: Wild
Where to find them: Large tributaries downstream of River Mill Dam
Average size: 12 to 18 inches
Spawning: January to March
Years in the ocean: 6 months with return trips to the ocean after spawning
*Run size numbers are 10-year averages based on the number of fish sorted at the North Fork Adult Sorting Facility.