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Diablo Lake
Six miles northeast of Newhalem. Open to fishing year-round. Naturally reproducing rainbow trout are the main attraction on this Skagit River impoundment. The lake is closed to the taking of bull trout/Dolly Varden. Diablo's public access and boat launch are managed by the National Park Service.

Fishing Prospects Calendar

 JanFebMarAprMayJunJulAugSepOctNovDec
Rainbow troutPoor fishing - All monthPoor fishing - All monthPoor fishing - All monthFair fishing - All monthGood fishing - All monthGood fishing - All monthFair fishing - All monthFair fishing - All monthGood fishing - All monthFair fishing - All monthPoor fishing - All monthPoor fishing - All month
LEGEND
Fishing Expectation

Excellent

Excellent Good Good Fair Fair Poor Poor
Type of Opportunity Full Month Full month 1st half of month only 1st half only 2nd half of month only 2nd half only No opportunity No opportunity

Species you might catch

Bull trout

Lake Information

Whatcom County
Lake Acreage: 803.6
Elevation: 1,213 feet
Westside Washington

Lake Management Type
Trout emphasis

Sport Fishing Regulations & Seasons

Emergency Rule Updates
Fishing closures and openings happen constantly throughout the year. The E-Rules keep you up-to-date.


Locate Locate this lake
This feature shows the general location of the selected body of water. Directions may not include routes to boat launches or other water access sites. Check below for access sites or read the description for specific access information. Please do not trespass on private property.
Two-Pole Fishing NOT allowed

Access Sites / Boat Ramps on this Lake

Other Lake Access

Fish Plants & Stocking Reports