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Rating depth structure for largemouth bass.
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795-acre reservoir near Villalba. A deep south-central reservoir near Villalba with one of Puerto Rico's healthiest largemouth-bass populations over redear sunfish, tilapia and catfish. The lake tops out around 177 ft. The depth chart comes from U.S. Geological Survey bathymetric survey data, so the contours are survey-derived rather than computer-modeled. Below is the species-by-species picture, pulled from the same data the map uses.
Lago Toa Vaca's chart carries 12.4 miles of bank. An index of 3.8 puts the bank firmly in maze territory: point after pocket after cove, every one a casting target. The shallow band under 15 ft claims about 47% of the surface — that's where the groceries are. Tip to tip the water measures near 2.4 mi with a 0.8-mi widest point. The water lies in Villalba County. Closest neighbour on DepthScout: Lago Guayabal, 2 mi west of here.
Start shallow in spring: largemouth bass sit in 2 to 10 ft that time of year. Summer pushes them deeper, 8 to 20 ft, and winter fish settle into 15 to 35 ft. The spot to know is Shallow bay flat, a weed flat in about 4 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 | Shallow bay flat (4 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Back-bay flat (6 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Secondary point (6 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (80 ft) | Blade bait, Jigging spoon |
The spring pattern is a shallow one: tilapia in 1 to 6 ft. As the season builds they drop to 2 to 10 ft, wintering in 5 to 18 ft. Top water on the chart: Shallow bay flat, a weed flat in the 4 ft range, prime in spring. Time it for midday and early morning. Summer baits: a micro-jig near weed edges gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | Shallow bay flat (4 ft) | Tiny jig + bread-ball tip, Small worm under float |
| Summer | 2 to 10 ft | midday & dawn | Shallow bay flat (4 ft) | Micro-jig near weed edges |
| Fall | 3 to 12 ft | midday | Shallow bay flat (4 ft) | Small jig tipped with worm |
| Winter | 5 to 18 ft | midday | Back-bay flat (6 ft) | Slow micro-jig, warm outflows |
Start shallow in spring: channel catfish sit in 3 to 12 ft that time of year. Summer pushes them deeper, 8 to 25 ft, and winter fish settle into 20 to 40 ft. The spot to know is Shallow bay flat, a weed flat in about 4 ft of water that rates good for channel catfish in spring. 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 | Shallow bay flat (4 ft) | |
| Summer | 8 to 25 ft | night & dusk | open water | |
| Fall | 10 to 30 ft | dusk | Deep basin (177 ft) | |
| Winter | 20 to 40 ft | midday | Deep basin (177 ft) |
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 10 to 25 ft. Spring bluegill concentrate at Shallow bay flat, a prime-rated weed flat around 4 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 | Shallow bay flat (4 ft) | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Shallow bay flat (4 ft) | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Back-bay flat (6 ft) | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Deep basin (177 ft) | Tiny spoon |
The chart marks 6 structure features on Lago Toa Vaca; the deepest is Deep basin at about 177 ft.
Season dates, license requirements, and size and bag limits for Puerto Rico waters are set by the Puerto Rico DRNA — and special regulations can apply to Lago Toa Vaca specifically, so confirm the current rules before you fish.
Check the official Puerto Rico fishing regulations →
Lago Toa Vaca is about 177 ft (54 m) deep at its deepest point. The depth chart comes from U.S. Geological Survey bathymetric survey data, so the contours are survey-derived rather than computer-modeled.
Anglers target largemouth bass, tilapia, channel catfish, bluegill on Lago Toa Vaca.
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for largemouth bass in spring. Scroll up to the map for the complete spot list by 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 Lago Toa Vaca is regulated by the Puerto Rico DRNA. Check the official Puerto Rico regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lago Guayabal 2 mi · Lago de Matrullas 7 mi · Lago Cerrillos 7 mi · Caleta de Cabullones 13 mi · Bahía de Rincón 14 mi · Bahía de Ponce 14 mi · Lago Caonillas 16 mi · Bahía Tallaboa 19 mi · Lago Dos Bocas 19 mi · Bahía de Jobos 21 mi · Bahía de Guayanilla 21 mi · Lago La Plata 22 mi
See how Lago Toa Vaca stacks up: best largemouth bass lakes in Puerto Rico · best tilapia lakes in Puerto Rico · best bluegill lakes in Puerto Rico · best channel catfish lakes in Puerto Rico
Browse all Puerto Rico fishing maps or see every water on DepthScout. Bathymetry credit: U.S. Geological Survey. 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.