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Rating depth structure for common carp.
Recent public catches load as you reach this section.
471-acre lake near Big Stone County. The lake tops out around 8 ft. The contours come from a model of the real basin shape and its known max depth. Read them as probabilities, not soundings, and keep them out of navigation decisions. What the data behind the map says about each species, season by season:
Drawn out, this is 471 acres of water rimmed by 7.8 miles of bank. A development index of 2.5 means a maze of bays and points: far more casting targets than a round bowl of the same size. The whole water is littoral — nothing here runs deeper than ~15 ft, so it's all weed-and-bait territory. Tip to tip the water measures near 1.6 mi with a 1.2-mi widest point. You'll find it in Big Stone County. Closest neighbour on DepthScout: Long Tom, 3 mi southwest of here.
Start shallow in spring: common carp sit in 2 to 8 ft that time of year. They don't go far with the seasons — 2 to 8 ft covers summer, 2 to 8 ft covers winter. The spot to know is Shallow bay flat, a weed flat in about 3 ft of water that rates prime for common carp in spring. Warm-month bites cluster around early morning and the evening.
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 | 2 to 8 ft chart-limited; documented 2 to 10 ft | midday & dawn | Shallow bay flat (3 ft) | |
| Summer | 2 to 8 ft chart-limited; documented 3 to 15 ft | dawn & dusk | Shallow bay flat (3 ft) | |
| Fall | 2 to 8 ft chart-limited; documented 5 to 18 ft | midday | Shallow bay flat (3 ft) | |
| Winter | 2 to 8 ft chart-limited; documented 10 to 30 ft | midday | Deep basin (7 ft) |
Spring black bullhead on Otrey hold shallow, usually 2 to 8 ft. Depth-wise the year is flat: 2 to 8 ft in summer, 2 to 8 ft once it turns cold. Put Deep basin first on the milk run — a deep basin near 7 ft that grades prime for winter. The feeding windows run after dark and the evening.
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 | 2 to 8 ft chart-limited; documented 2 to 9 ft | dusk & night | Shallow bay flat (3 ft) | |
| Summer | 2 to 8 ft chart-limited; documented 3 to 15 ft | night & dusk | Shallow bay flat (3 ft) | |
| Fall | 2 to 8 ft chart-limited; documented 6 to 20 ft | dusk | Deep basin (7 ft) | |
| Winter | 2 to 8 ft chart-limited; documented 10 to 28 ft | midday | Deep basin (7 ft) |
The chart marks 6 structure features on Otrey; the deepest is Main-lake point at about 8 ft.
Season dates, license requirements, and size and bag limits for Minnesota waters are set by the Minnesota DNR — and special regulations can apply to Otrey specifically, so confirm the current rules before you fish.
Check the official Minnesota fishing regulations →
Otrey is about 8 ft (2 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 common carp, black bullhead on Otrey.
Shallow bay flat is the top-rated area: a weed flat in about 3 ft of water that rates prime for common carp in spring. Every other rated spot, per species and season, is on the map above.
For common carp, 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 Otrey is regulated by the Minnesota DNR. Check the official Minnesota regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Long Tom 3 mi · Long 8 mi · Artichoke 10 mi · North Rothwell 12 mi · Lone Tree Slough 12 mi · Lannon 14 mi · Marsh 14 mi · Oliver (west portion) 14 mi · Big Stone Lake 15 mi, MN/SD · East Toqua 15 mi · Oliver (east portion) 15 mi · Shible 16 mi
See how Otrey stacks up: best common carp lakes in Minnesota
More water nearby: Big Stone County fishing maps (11 charts). Browse all Minnesota fishing maps. 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.