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Rating depth structure for rainbow trout.
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98-acre stocked lake in the Mat-Su area. ADF&G sonar-surveyed water with stocked rainbow trout and 3 more species. The lake tops out around 23 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Here's the year, species by species, as the scoring engine sees it.
Drawn out, this is 89 acres of water rimmed by 1.5 miles of bank. The basin is a simple one (shoreline index 1.1) — close to a bowl, so the structure on the chart matters more than the bank. The shallow band under 15 ft claims about 56% of the surface — that's where the groceries are. The basin spans about 0.6 mi end to end and 0.4 mi across at its widest. The water lies in Matanuska-Susitna Borough. Closest neighbour on DepthScout: Zero lake, 3 mi northwest of here.
Spring puts rainbow trout in skinny water — 5 to 20 ft is the zone. Warm water sends them out to 6 to 23 ft; cold water stacks them in 5 to 23 ft. Shallow feeding flat is the standout, a feeding flat at roughly 20 ft, rated good for spring rainbow trout. Plan around early morning and the evening in the warm months. A dodger + spoon (deep troll) or a flutter spoon covers the summer program.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Shallow feeding flat (20 ft) | Inline spinner (silver), Small spoon |
| Summer | 6 to 23 ft chart-limited; documented 8 to 30 ft | dawn & dusk | Shallow feeding flat (20 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 7 to 23 ft chart-limited; documented 10 to 35 ft | dawn & dusk | open water | Casting spoon, Jerkbait over shoals |
| Winter | 5 to 23 ft chart-limited; documented 8 to 40 ft | dawn | open water | Jigging spoon, Tube jig (white) |
Early season arctic char use the shallows, holding in 4 to 15 ft. Expect a summer slide to 7 to 23 ft, then a winter hold in 6 to 23 ft. In summer the feeding windows fall in early morning. Tie on a jigging spoon vertical or a tube jig (smelt) and you're in the game.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 4 to 15 ft | midday & dawn | open water | Small casting spoon (silver/orange), Jerkbait (small) |
| Summer | 7 to 23 ft chart-limited; documented 20 to 60 ft | dawn | open water | Jigging spoon vertical, Tube jig (smelt) |
| Fall | 6 to 23 ft chart-limited; documented 8 to 30 ft | midday & dusk | open water | Casting spoon (orange/gold), Beadhead streamer |
| Winter | 6 to 23 ft chart-limited; documented 10 to 40 ft | midday & dawn | open water | Jigging spoon (glow/silver), Tungsten jig + plastic |
In spring, chinook salmon run shallow here, mostly 3 to 23 ft. Summer keeps them at 7 to 23 ft, and they winter in 7 to 23 ft. Time it for early morning and the evening. You won't need more than a flasher + fly (green/white) or a magnum spoon on downrigger most summer days.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 23 ft chart-limited; documented 5 to 40 ft | dawn & dusk | open water | Trolled spoon (orange/gold), Stickbait off planer boards |
| Summer | 7 to 23 ft chart-limited; documented 50 to 120 ft | dawn & dusk | open water | Flasher + fly (green/white), Magnum spoon on downrigger |
| Fall | 5 to 23 ft chart-limited; documented 10 to 50 ft | dawn & dusk | open water | J-plug (glow), Flasher + fly |
| Winter | 7 to 23 ft chart-limited; documented 30 to 90 ft | midday | open water | Small spoon on a slow troll, Stickbait deep |
The spring pattern is a shallow one: coho salmon in 3 to 23 ft. The depth story barely changes: 7 to 23 ft through summer, 7 to 23 ft in winter. Time it for early morning and the evening. Summer baits: a dodger + fly or a medium spoon above the thermocline gets it done.
Depth note: when a documented seasonal range extends below this chart, the table shows the deepest mapped working water, not a verified holding depth.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 23 ft chart-limited; documented 3 to 25 ft | dawn & dusk | open water | Small orange dodger + peanut fly, Thin spoon (orange/silver) |
| Summer | 7 to 23 ft chart-limited; documented 30 to 70 ft | dawn & dusk | open water | Dodger + fly, Medium spoon above the thermocline |
| Fall | 5 to 23 ft chart-limited; documented 8 to 40 ft | dawn & dusk | open water | Casting spoon, Spinner (chartreuse) |
| Winter | 7 to 23 ft chart-limited; documented 20 to 60 ft | midday | open water | Small spoon, slow troll |
Count 1 structure marks on this chart. The deepest, Shallow feeding flat, sits near 20 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 Prator Lake specifically, so confirm the current rules before you fish.
Check the official Alaska fishing regulations →
Prator Lake is about 23 ft (7 m) deep at its deepest point. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target rainbow trout, arctic char, chinook salmon, coho salmon on Prator Lake.
Shallow feeding flat is the top-rated area: a feeding flat in about 20 ft of water that rates good for rainbow trout in spring. Scroll up to the map for the complete spot list by species and season.
For rainbow trout, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Fishing on Prator 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.
Zero lake 3 mi · Big Lake 8 mi · Nancy Lake 10 mi · Memory Lake 10 mi · Wasilla Lake 12 mi · Kings Lake 12 mi · Anderson Lake 13 mi · Red Shirt Lake 14 mi · Beach Lake 16 mi · Mirror Lake 17 mi · Edmonds Lake 17 mi · Clunie Lake 19 mi
See how Prator Lake stacks up: best rainbow trout lakes in Alaska · best chinook salmon lakes in Alaska · best coho salmon lakes in Alaska · best arctic char lakes in Alaska
More water nearby: Matanuska-Susitna Borough fishing maps (15 charts). Browse all Alaska fishing maps. See every water on DepthScout. Bathymetry: published agency survey data. 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.