Lake depth chart
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1,020-acre reservoir near Bonham. The lake tops out around 30 ft. The depth chart comes from Texas Water Development Board 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.
Lake Bonham maps at 879 acres behind 19.1 miles of shoreline. That shoreline is heavily fingered (development index 4.6) — bays, points and pockets everywhere, which multiplies the fishable edge. Roughly 59% of the water is 15 ft or less, the band where the food chain lives. Tip to tip the water measures near 2.4 mi with a 1.9-mi widest point. Fannin County claims this one. Its nearest charted neighbour, Bois d'Arc Lake, is 7 mi to the east.
Spring largemouth bass on Lake Bonham hold shallow, usually 2 to 10 ft. By summer they slide out to 8 to 20 ft, and by winter most fish are in 9 to 30 ft. The chart's best answer is Shallow bay flat — weed flat, 2 ft, prime for spring. Prime time lands in early morning and the evening. The summer box starts with a texas-rigged 10" worm or a deep-diving crankbait.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (2 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Main-lake point (9 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Main-lake point (9 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 9 to 30 ft | midday | Break off the point (22 ft) | Blade bait, Jigging spoon |
Early season crappie use the shallows, holding in 2 to 8 ft. Expect a summer slide to 10 to 25 ft, then a winter hold in 9 to 30 ft. Put Deep basin first on the milk run — a deep basin near 29 ft that grades prime for winter. In summer the feeding windows fall in early morning and the evening. Tie on a jig trolled/spider-rigged or a small crankbait (trolled) and you're in the game.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (2 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (22 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Shallow feeding flat (20 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 9 to 30 ft | midday | Deep basin (29 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Spring channel catfish on Lake Bonham hold shallow, usually 3 to 12 ft. By summer they slide out to 8 to 25 ft, and by winter most fish are in 9 to 30 ft. The chart's best answer is Deep basin — deep basin, 29 ft, prime for winter. Prime time lands in after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Shallow bay flat (2 ft) | |
| Summer | 8 to 25 ft | night & dusk | Shallow feeding flat (20 ft) | |
| Fall | 10 to 30 ft | dusk | Deep basin (29 ft) | |
| Winter | 9 to 30 ft | midday | Deep basin (29 ft) |
Start shallow in spring: blue catfish sit in 5 to 25 ft that time of year. Warm water sends them out to 8 to 30 ft; cold water stacks them in 9 to 30 ft. Top water on the chart: Deep basin, a deep basin in the 29 ft range, prime in winter. Fish it in early morning and the evening and you'll meet the bite.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dusk | Break off the point (22 ft) | |
| Summer | 8 to 30 ft | dawn & dusk | Deep basin (29 ft) | |
| Fall | 9 to 30 ft | dusk | Deep basin (29 ft) | |
| Winter | 9 to 30 ft | midday | Deep basin (29 ft) |
7 pieces of structure are mapped here — Deep basin, around 29 ft, is the deepest of them.
Access data: Texas Parks & Wildlife — Public Boat Ramps. Confirm conditions and fees locally before you launch.
Season dates, license requirements, and size and bag limits for Texas waters are set by the Texas Parks & Wildlife — and special regulations can apply to Lake Bonham specifically, so confirm the current rules before you fish.
Check the official Texas fishing regulations →
Lake Bonham is about 30 ft (9 m) deep at its deepest point. The depth chart comes from Texas Water Development Board bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target largemouth bass, crappie, channel catfish, blue catfish on Lake Bonham.
Shallow bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for largemouth bass in spring. The map above holds the full rated-spot list for every species and season.
For largemouth bass, 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 Lake Bonham is regulated by the Texas Parks & Wildlife. Check the official Texas regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Bois d'Arc Lake 7 mi · Bonham State Park Lake 8 mi · Coffee Mill Lake 11 mi · Davy Crockett Lake 14 mi · Big Creek Reservoir 31 mi · Durant Lake 32 mi, OK · Lake Crook 33 mi · Pat Mayse Lake 34 mi · Cooper Lake 35 mi · Lake Texoma 41 mi, TX/OK · Lavon Lake 42 mi · Lake Sulphur Springs 45 mi
See how Lake Bonham stacks up: best largemouth bass lakes in Texas · best crappie lakes in Texas · best channel catfish lakes in Texas · best blue catfish lakes in Texas
More water nearby: Fannin County fishing maps (5 charts). Browse all Texas fishing maps or 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.