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234-acre lake near Sisters. The lake tops out around 70 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Species by species, here's what the data says the year looks like.
Early season rainbow trout use the shallows, holding in 5 to 20 ft. Summer is an 8 to 30 ft game here, winter an 8 to 40 ft one. The chart's best answer is Break off the point — drop-off, 22 ft, prime for winter. Best bite is early morning and the evening. Tie on a dodger + spoon (deep troll) or a flutter spoon and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Break off the point (22 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (22 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Break off the point (22 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (22 ft) | Jigging spoon, Tube jig (white) |
7 pieces of structure are mapped here — Deep basin, around 70 ft, is the deepest of them.
Access data: Oregon State Marine Board — Boating Access. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Oregon waters are set by the Oregon Department of Fish and Wildlife — and special regulations can apply to Big Lake specifically, so confirm the current rules before you fish.
Check the official Oregon fishing regulations →
Big Lake is about 70 ft (21 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.
Anglers target rainbow trout on Big Lake.
Break off the point is the top-rated area: a drop-off in about 22 ft of water that rates prime for rainbow trout in winter. 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 Big Lake is regulated by the Oregon Department of Fish and Wildlife. Check the official Oregon regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Clear Lake 6 mi · Metolius River 21 mi · Sparks Lake 26 mi · Cougar Reservoir 26 mi · McKenzie River 28 mi · Hosmer Lake 29 mi · Haystack Reservoir 37 mi · Deer Lake 38 mi · Torrey Lake 41 mi · Crane Prairie Reservoir 41 mi · Charlton Lake 44 mi · Waldo Lake 46 mi
See how Big Lake stacks up: best rainbow trout lakes in Oregon
Browse all Oregon fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. 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.