Mary Lake Fish Stocking
King County, Washington · 2016–2021 on record
According to Washington fish & wildlife agency, Mary Lake was last stocked July 17, 2021 with Golden Trout. Mary Lake has 2 stocking records on file, spanning 2016–2021, with about 300 fish stocked over that period.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Mary Lake
Practical advice on fish behavior, recommended tackle, and state regulations for anglers fishing in King County, Washington.
Post-Plant Behavior & Timing
Hatchery-raised fish are conditioned to pelleted feed and open raceways. Following a release into Mary Lake, they typically congregate in schools near public access points, boat ramps, or inlets for the first 24 to 48 hours while adjusting to natural water conditions.
Since Mary Lake was last stocked July 17, 2021, anglers visiting within 1 to 2 weeks of a reported event generally experience the highest activity before fish disperse into deeper cover.
State Regulations & Licensing
- •Fishing License: A valid Washington freshwater fishing license is required for anglers age 16 and older.Purchase Washington license online →
- •Official Rules & Limits: Bag limits, bait restrictions, and seasonal boundaries are set by Washington fish & wildlife agency.Official Washington regulations guidebook →
- •Ethical Conservation: Use barbless hooks and keep fish submerged in water during unhooking.Trout Thermal Advisory: When water temperatures rise above 68°F (20°C), released trout face severe mortality from thermal exhaustion. Target warmwater species or fish early in the morning when lakes and streams warm up.
Recommended Tackle & Presentations
Techniques tailored to the species stocked in Mary Lake:
Stocked Trout Tactics
Use light 4–6 lb monofilament or fluorocarbon line. Float scented dough bait (PowerBait) 12–18" off bottom using a sliding slip-sinker rig with a size 14–16 treble hook. For active casting, throw 1/16 to 1/8 oz inline spinners (Panther Martin, Rooster Tail) or small spoons (Kastmaster) along drop-offs.
Golden Trout Profile Tips
A bucket-list fish for many western anglers, often requiring a backcountry hike to reach stocked alpine lakes.
Recommended Tackle for Mary Lake
Field-tested tackle and presentations matched to the species stocked here.
Berkley PowerBait Floating Trout Dough
Hatchery-raised trout are conditioned to pelleted scents; scented dough floated 12–18 inches off bottom consistently triggers strikes.
Panther Martin Classic Teardrop Inline Spinner
The heavy convex blade spins instantly upon retrieval, sending vibration through the water that triggers aggressive reaction bites along drop-offs.
Sliding Sinker & Treble Hook Rigging Kit
Sliding egg sinkers allow cautious trout to run with bait without feeling line drag, while size 14–16 treble hooks keep dough bait securely pinned.
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Nearby stocked waters
Other stocked waters near Mary Lake, freshest activity first.
Jade Lake
3 miKing County · 1 species · 6 records
Last stocked June 2026
No Name Lake
3 miKing County · 1 species · 6 records
Last stocked September 2025
Milk Lake
5 miChelan County · 2 species · 6 records
Last stocked August 2025
View Lake
4 miKing County · 1 species · 5 records
Last stocked August 2025
Talus Lake
5 miKing County · 1 species · 3 records
Last stocked July 2024
Lake Ilswoot
3 miKing County · 2 species · 10 records
Last stocked October 2022
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Source |
|---|---|---|---|
| July 17, 2021 | Golden Trout | 150 | Washington fish & wildlife agency |
| September 24, 2016 | Golden Trout | 150 | Washington fish & wildlife agency |
The reporting agency did not include fish sizes for this water.
Frequently asked
When was Mary Lake last stocked?
According to Washington fish & wildlife agency, Mary Lake was last stocked July 17, 2021 with Golden Trout.
What fish species are stocked in Mary Lake?
Mary Lake is stocked with Golden Trout.
How often is Mary Lake stocked?
Mary Lake is stocked intermittently — 2 recorded stockings between 2016 and 2021.
How many fish have been stocked in Mary Lake?
About 300 fish have been stocked in Mary Lake across 2 recorded events since 2016, per Washington fish & wildlife agency.
Do you need a fishing license to fish Mary Lake?
Yes, all anglers age 16 and older generally need a valid Washington freshwater fishing license. Always review current regulations from Washington fish & wildlife agency for site-specific rules, bag limits, or stamps.
How do you catch stocked trout in Mary Lake?
Freshly stocked trout in Mary Lake typically respond well to floating dough bait (such as PowerBait) floated 12–18 inches off bottom on light 4–6 lb leader, live nightcrawlers under a bobber, and small inline spinners or spoons retrieved along shorelines and drop-offs.