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45,047-acre lake near Pilot Point. A large Alaska Peninsula lake whose Ugashik Narrows is the world's premier trophy Arctic grayling fishery, backed by an outstanding Arctic char run. The lake tops out around 394 ft. What you see is a modeled chart: the shoreline is real, the max depth is published, and the contours between are estimated. Plan with it; don't navigate by it. Here is how the season plays out for each species, straight from the data behind the map.
Traced from the shoreline, Lower Ugashik Lake runs 46,134 acres with 48.7 miles of edge. The shoreline is moderately structured (index 1.6) — enough points and pockets to pattern. About 16% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone. Call it 11.5 mi long by 11.4 mi wide at the broadest reach. You'll find it in Lake and Peninsula Borough. The nearest mapped water is Upper Ugashik Lake, 14 mi to the northeast.
In spring, arctic grayling run shallow here, mostly 2 to 10 ft. Summer pushes them deeper, 3 to 15 ft, and winter fish settle into 8 to 25 ft. Shallow bay flat is the standout, a feeding flat at roughly 6 ft, rated prime for summer arctic grayling. Time it for the evening and early morning. You won't need more than a dry fly (parachute adams, elk hair caddis) or a small inline spinner most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | midday & dusk | Shallow bay flat (6 ft) | 1/16 oz spinner (silver), Small dry fly (Adams, Griffith's) |
| Summer | 3 to 15 ft | dusk & dawn | Shallow bay flat (6 ft) | Dry fly (parachute Adams, elk hair caddis), Small inline spinner |
| Fall | 6 to 20 ft | midday | Break off the point (177 ft) | Small spoon, Beadhead nymph under indicator |
| Winter | 8 to 25 ft | midday & dawn | Offshore hump (16 ft) | Tungsten jig + waxworm, Small jigging spoon (gold) |
Early season arctic char use the shallows, holding in 4 to 15 ft. Summer is a 20 to 60 ft game here, winter a 10 to 40 ft one. The chart's best answer is Offshore hump — offshore hump, 31 ft, prime for summer. Best bite is early morning. Tie on a jigging spoon vertical or a tube jig (smelt) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | midday & dawn | Shallow bay flat (6 ft) | Small casting spoon (silver/orange), Jerkbait (small) |
| Summer | 20 to 60 ft | dawn | Offshore hump (31 ft) | Jigging spoon vertical, Tube jig (smelt) |
| Fall | 8 to 30 ft | midday & dusk | Offshore hump (16 ft) | Casting spoon (orange/gold), Beadhead streamer |
| Winter | 10 to 40 ft | midday & dawn | Offshore hump (31 ft) | Jigging spoon (glow/silver), Tungsten jig + plastic |
The chart marks 13 structure features on Lower Ugashik Lake; the deepest is Deep basin at about 335 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 Lower Ugashik Lake specifically, so confirm the current rules before you fish.
Check the official Alaska fishing regulations →
Lower Ugashik Lake is about 394 ft (120 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 grayling, arctic char on Lower Ugashik Lake.
Offshore hump is the top-rated area: an offshore hump in about 31 ft of water that rates prime for arctic char in summer. Scroll up to the map for the complete spot list by species and season.
For arctic grayling, the summer bite is best in the evening and 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 Lower 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.
Upper Ugashik Lake 14 mi · Becharof Lake 30 mi · Nunavaugaluk Lake 142 mi · Iliamna Lake 160 mi · Crescent Lake 244 mi · Kasilof River 279 mi · Tustumena Lake 283 mi · Kenai River (Middle) 303 mi · Silver Lake 306 mi · Skilak Lake 309 mi · Watson Lake 310 mi · Egumen Lake 310 mi
See how Lower Ugashik Lake stacks up: 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.