Diamond Lake Fish Stocking
Utah · 1983–2023 on record
According to Utah DWR — Fish Stocking Events (1979–2024 archive), Diamond Lake was last stocked July 21, 2023 with Brook Trout. Diamond Lake has 12 stocking records on file, spanning 1983–2023, with about 15,857 fish stocked over that period.
When Diamond Lake is stocked
Diamond Lake is typically stocked in summer, most often in July — 9 stocking events in that peak month.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Diamond Lake
Practical advice on fish behavior, recommended tackle, and state regulations for anglers fishing in Utah.
Post-Plant Behavior & Timing
Hatchery-raised fish are conditioned to pelleted feed and open raceways. Following a release into Diamond 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 Diamond Lake was last stocked July 21, 2023, 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 Utah freshwater fishing license is required for anglers age 16 and older.Purchase Utah license online →
- •Official Rules & Limits: Bag limits, bait restrictions, and seasonal boundaries are set by Utah fish & wildlife agency.Official Utah 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 Diamond 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.
Brook Trout Profile Tips
A favorite of high-country and small-stream anglers; often more willing to strike than brown or rainbow trout in the same water.
Recommended Tackle for Diamond 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 Diamond Lake, freshest activity first.
Mid Lake
1 miDUCHESNE County · 1 species · 12 records
Last stocked July 2026
Horseshoe Lake Rc 38
1 miDUCHESNE County · 1 species · 13 records
Last stocked July 2026
Rudolph Lake No 1
1 miDUCHESNE County · 1 species · 13 records
Last stocked July 2026
Amlen Lake
2 miDUCHESNE County · 1 species · 14 records
Last stocked July 2026
Hook Lake
2 miDUCHESNE County · 2 species · 11 records
Last stocked July 2026
Rock Creek
3 miDUCHESNE County · 5 species · 146 records
Last stocked July 2026
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 21, 2023 | Brook Trout | 1,299 | 3" | Utah DWR |
| July 9, 2019 | Brook Trout | 1,014 | 2.68" | Utah DWR |
| July 1, 2015 | Brook Trout | 1,312 | 2.5" | Utah DWR |
| August 4, 2011 | Brook Trout | 1,299 | 2.45" | Utah DWR |
| July 9, 2007 | Brook Trout | 1,298 | 3.22" | Utah DWR |
| July 1, 2007 | Brook Trout | 1,300 | 3" | Utah DWR |
| June 30, 2003 | Brook Trout | 1,307 | 2.62" | Utah DWR |
| July 12, 1999 | Brook Trout | 1,305 | 2.72" | Utah DWR |
Show 4 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| July 31, 1995 | Brook Trout | 1,300 | 3.14" | Utah DWR |
| July 11, 1991 | Brook Trout | 1,302 | 3.1" | Utah DWR |
| June 23, 1987 | Brook Trout | 1,307 | 2.67" | Utah DWR |
| July 12, 1983 | Brook Trout | 1,814 | — | Utah DWR |
Frequently asked
When was Diamond Lake last stocked?
According to Utah DWR — Fish Stocking Events (1979–2024 archive), Diamond Lake was last stocked July 21, 2023 with Brook Trout.
What fish species are stocked in Diamond Lake?
Diamond Lake is stocked with Brook Trout.
What time of year is Diamond Lake stocked?
Diamond Lake is typically stocked in summer, most often in July.
How often is Diamond Lake stocked?
Diamond Lake is stocked intermittently — 12 recorded stockings between 1983 and 2023.
How many fish have been stocked in Diamond Lake?
About 15,857 fish have been stocked in Diamond Lake across 12 recorded events since 1983, per Utah fish & wildlife agency.
What size are the fish stocked in Diamond Lake?
Fish stocked in Diamond Lake average about 2.8 inches, based on the sizes the agency reported.
Do you need a fishing license to fish Diamond Lake?
Yes, all anglers age 16 and older generally need a valid Utah freshwater fishing license. Always review current regulations from Utah fish & wildlife agency for site-specific rules, bag limits, or stamps.
How do you catch stocked trout in Diamond Lake?
Freshly stocked trout in Diamond 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.