California Department of Fish and Wildlife

Mokelumne River Fish Hatchery

Frequently Asked Questions

Does the Mokelumne River Fish Hatchery raise catchable trout?
This hatchery only raises Chinook Salmon and Steelhead Trout.
What is the largest fish ever spawned at the hatchery?
A 45 pound salmon.  On average, the salmon are about 18-20 pounds each.
Where can I get information about the current flow of the Mokelumne River?
Look up daily flows of the Mokelumne on the California Department of Water Resources website (enter CMN in the box labeled “ID Station” then click “Get Daily Data”)
Who do I call to find out if the Mokelumne River is open or closed to floating?
Contact the San Joaquin County Sheriff Department, which has the authority to close and open the river.
Is the hatchery wheelchair accessible?
Trails at the hatchery are all paved and wheelchair accessible.
Are dogs allowed on the hatchery grounds?
Dogs are allowed as long as they are on a leash.