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49,270-acre lake near Pilot Point. The upper of the two great Ugashik Lakes on the Alaska Peninsula, joined to Lower Ugashik by the Narrows. The world's premier trophy Arctic grayling water. And holding an outstanding Arctic char fishery. The lake tops out around 492 ft. Depth here is modeled from the true shoreline and max depth rather than surveyed; use it to plan, not to navigate. The season-by-season read for each species follows, from the map's own numbers.
Upper Ugashik Lake maps at 52,698 acres behind 52.8 miles of shoreline, broken up by an island. A middling shoreline index (1.6) gives it some bays to work without being a maze. 29% of the surface is littoral (under ~15 ft), per the model — cover, weeds and forage water. End to end it runs roughly 17.2 mi, about 7.2 mi across. It sits in Lake and Peninsula Borough. Lower Ugashik Lake sits 14 mi southwest — the closest neighbouring chart.
Spring puts arctic char in skinny water — 4 to 15 ft is the zone. As the season builds they drop to 20 to 60 ft, wintering in 10 to 40 ft. Summer arctic char concentrate at Offshore hump, a prime-rated offshore hump around 48 ft. Warm-month bites cluster around early morning. A jigging spoon vertical or a tube jig (smelt) covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | midday & dawn | Creek inflow (8 ft) | Small casting spoon (silver/orange), Jerkbait (small) |
| Summer | 20 to 60 ft | dawn | Offshore hump (48 ft) | Jigging spoon vertical, Tube jig (smelt) |
| Fall | 8 to 30 ft | midday & dusk | Offshore hump (27 ft) | Casting spoon (orange/gold), Beadhead streamer |
| Winter | 10 to 40 ft | midday & dawn | Offshore hump (37 ft) | Jigging spoon (glow/silver), Tungsten jig + plastic |
When the water first warms, arctic grayling slide up into 2 to 10 ft. By summer they slide out to 3 to 15 ft, and by winter most fish are in 8 to 25 ft. If you only fish one area, make it Creek inflow: an inflow / creek mouth around 8 ft that scores prime in spring. In summer the feeding windows fall in the evening and early morning. Keep a dry fly (parachute adams, elk hair caddis) or a small inline spinner rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | Creek inflow (8 ft) | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Creek inflow (8 ft) | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | Creek inflow (8 ft) | Small spoon, Beadhead nymph under indicator |
| Winter | 8 to 25 ft | midday & dawn | Offshore hump (27 ft) | Tungsten jig + waxworm, Small jigging spoon (gold) |
Early season coho salmon use the shallows, holding in 3 to 25 ft. Summer is a 30 to 70 ft game here, winter a 20 to 60 ft one. The chart's best answer is Creek inflow — inflow / creek mouth, 8 ft, prime for spring. Best bite is early morning and the evening. Tie on a dodger + fly or a medium spoon above the thermocline and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 25 ft | dawn & dusk | Creek inflow (8 ft) | Small orange dodger + peanut fly, Thin spoon (orange/silver) |
| Summer | 30 to 70 ft | dawn & dusk | Offshore hump (48 ft) | Dodger + fly, Medium spoon above the thermocline |
| Fall | 8 to 40 ft | dawn & dusk | Creek inflow (8 ft) | Casting spoon, Spinner (chartreuse) |
| Winter | 20 to 60 ft | midday | Deep basin (418 ft) | Small spoon, slow troll |
Count 14 structure marks on this chart. The deepest, Deep basin, sits near 418 ft.
Season dates, license requirements, and size and bag limits for Alaska waters are set by the Alaska Department of Fish and Game — and special regulations can apply to Upper Ugashik Lake specifically, so confirm the current rules before you fish.
Check the official Alaska fishing regulations →
Upper Ugashik Lake is about 492 ft (150 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
Anglers target arctic char, arctic grayling, coho salmon on Upper Ugashik Lake.
Creek inflow is the top-rated area: an inflow / creek mouth in about 8 ft of water that rates prime for arctic grayling in spring. Open the map above to see every rated spot for each species and season.
For arctic char, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Upper Ugashik Lake is regulated by the Alaska Department of Fish and Game. Check the official Alaska regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lower Ugashik Lake 14 mi · Becharof Lake 16 mi · Nunavaugaluk Lake 135 mi · Iliamna Lake 146 mi · Crescent Lake 230 mi · Kasilof River 265 mi · Tustumena Lake 269 mi · Kenai River (Middle) 289 mi · Silver Lake 292 mi · Skilak Lake 295 mi · Watson Lake 296 mi · Egumen Lake 297 mi
See how Upper Ugashik Lake stacks up: best coho salmon lakes in Alaska · best arctic grayling lakes in Alaska · best arctic char lakes in Alaska
Browse all Alaska fishing maps or see every water on DepthScout. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.