Lake depth chart
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659-acre lake. Hydroacoustic-surveyed Florida lake (FWC). Standard Florida warmwater roster; species not individually verified. The lake tops out around 17 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. The season-by-season read for each species follows, from the map's own numbers.
On the chart, Lake Alto draws 678 acres inside 4.2 miles of shoreline. Its 1.1 shoreline index means few bank features; the contours below do the pattern work. About 68% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 1.7 mi long by 0.9 mi wide at the broadest reach. The water lies in Alachua County. The nearest mapped water is Santa Fe Lake, 4 mi to the southeast.
Start shallow in spring: largemouth bass sit in 2 to 10 ft that time of year. Summer pushes them deeper, 5 to 17 ft, and winter fish settle into 5 to 17 ft. The spot to know is Grass flat, a weed flat in about 5 ft of water that rates prime for largemouth bass in spring. Warm-month bites cluster around early morning and the evening. Throw a texas-rigged 10" worm or a deep-diving crankbait until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Grass flat (5 ft) | Spinnerbait, Chatterbait |
| Summer | 5 to 17 ft | dawn & dusk | Grass flat (5 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Grass flat (5 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 5 to 17 ft | midday | Deepest hole (17 ft) | Blade bait, Jigging spoon |
Spring puts bluegill in skinny water — 1 to 6 ft is the zone. As the season builds they drop to 4 to 15 ft, wintering in 5 to 17 ft. Spring bluegill concentrate at Grass flat, a prime-rated weed flat around 5 ft. Warm-month bites cluster around early morning and the evening. A small sponge spider (fly) or a micro tube jig covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Grass flat (5 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Grass flat (5 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 5 to 17 ft | midday | Grass flat (5 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 5 to 17 ft | midday | Deepest hole (17 ft) | Tiny spoon |
The spring pattern is a shallow one: crappie in 2 to 8 ft. As the season builds they drop to 5 to 17 ft, wintering in 5 to 17 ft. Top water on the chart: Deepest hole, a deep basin in the 17 ft range, prime in winter. Time it for early morning and the evening. Summer baits: a jig trolled/spider-rigged or a small crankbait (trolled) gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Grass flat (5 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 5 to 17 ft | dawn & dusk | Grass flat (5 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 5 to 17 ft | dawn | Grass flat (5 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 5 to 17 ft | midday | Deepest hole (17 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
Start shallow in spring: channel catfish sit in 3 to 12 ft that time of year. Summer pushes them deeper, 5 to 17 ft, and winter fish settle into 5 to 17 ft. The spot to know is Deepest hole, a deep basin in about 17 ft of water that rates prime for channel catfish in winter. Warm-month bites cluster around after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Grass flat (5 ft) | |
| Summer | 5 to 17 ft | night & dusk | Deepest hole (17 ft) | |
| Fall | 5 to 17 ft | dusk | Deepest hole (17 ft) | |
| Winter | 5 to 17 ft | midday | Deepest hole (17 ft) |
Lake Alto carries 6 mapped structure features, topping out (or rather bottoming out) at Deepest hole, about 17 ft down.
Season dates, license requirements, and size and bag limits for Florida waters are set by the Florida Fish and Wildlife Conservation Commission — and special regulations can apply to Lake Alto specifically, so confirm the current rules before you fish.
Check the official Florida fishing regulations →
Lake Alto is about 17 ft (5 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 largemouth bass, bluegill, crappie, channel catfish on Lake Alto.
Grass flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for largemouth bass in spring. The interactive chart above rates every spot for each 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 Alto is regulated by the Florida Fish and Wildlife Conservation Commission. Check the official Florida regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Santa Fe Lake 4 mi · Lake Brooklyn 7 mi · Lowry Lake 10 mi · Newnans Lake 10 mi · Lake Sampson 11 mi · Sheeler Lake 12 mi · Cowpen Lake 15 mi · Star Lake 19 mi · Wauberg Lake 20 mi · Butler Lake 21 mi · Lochloosa Lake 22 mi · Orange Lake 22 mi
See how Lake Alto stacks up: best largemouth bass lakes in Florida · best crappie lakes in Florida · best bluegill lakes in Florida · best channel catfish lakes in Florida
More water nearby: Alachua County fishing maps (6 charts). Browse all Florida 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.