Best lake trout lakes in Utah
5 Utah waters hold lake trout, 1 mapped with real state-agency depth surveys. Ranked below by size and depth-data quality — open any water to see exactly where to fish it: depth contours, scored spots with plain-English reasons, seasonal windows and bait picks. Deep, cold and long-lived. Below 50°F water year-round — shallow at ice-out and on fall spawning reefs.
- Flaming Gorge Reservoir — 436 ft max · Smallmouth Bass, Channel Catfish, Rainbow Trout, Common CarpWhy #1: mapped size signal; contours are approximated · 5 public access sites
- Bear Lake — 197 ft max · survey depth data · Rainbow Trout, Lake Trout, Lake Whitefish, Cutthroat TroutWhy #2: survey-backed contours receive the ranking's data-quality boost · 2 public access sites
- Fish Lake — 175 ft max · Rainbow Trout, Muskellunge, Yellow Perch, Common CarpWhy #3: mapped size signal; contours are approximated · 4 public access sites
- Porcupine Reservoir — 112 ft max · Rainbow Trout, Lake Trout, KokaneeWhy #4: mapped size signal; contours are approximated · 2 public access sites
- Lake Mary — 36 ft max · Lake Trout, Brook TroutWhy #5: mapped size signal; contours are approximated · no verified access record attached
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How to use this ranking
The order is a map-planning ranking, not a claim about today's fish population. It favors larger mapped waters and gives survey-backed contours a three-times data-quality boost. Agency population surveys, current regulations, access and recent conditions should make the final decision.
Compare maximum depth across 37,233 lake records · See Utah waters with public access data
When to fish lake trout in Utah
- Spring 10–40 ft — The brief shallow window: post-ice-out lakers roam rock shoals and points where anyone can reach them.
- Summer 50–120 ft — Below the thermocline in sub-50°F water — deep humps and basin edges near bait (smelt, cisco, alewife).
- Fall 10–50 ft — Turnover puts lakers on shallow rock reefs to spawn — big fish shallow, best late in the day.
- Winter 20–80 ft — One of the best ice targets — cold water is their comfort zone; they roam basin edges and humps all winter.
Also in Utah: best largemouth bass lakes · best smallmouth bass lakes · best walleye lakes · best crappie lakes · best bluegill lakes · best channel catfish lakes · best rainbow trout lakes · best muskellunge lakes · best white bass & hybrids lakes · best yellow perch lakes · best common carp lakes · best brown trout lakes · best brook trout lakes · best kokanee lakes · best lake whitefish lakes · best arctic grayling lakes · best cutthroat trout lakes · best splake lakes
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