Lake depth chart
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611-acre reservoir near Marble Falls. The lake tops out around 59 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.
Drawn out, this is 586 acres of water rimmed by 15.6 miles of bank, with 5 islands in the mix. A development index of 4.6 means a maze of bays and points: far more casting targets than a round bowl of the same size. About 75% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Figure 4.9 mi of water from one end to the other, 1.3 mi at the beam. The water lies in Burnet County. For a second option, Lake LBJ lies 8 mi northwest.
The spring pattern is a shallow one: largemouth bass in 2 to 10 ft. As the season builds they drop to 8 to 20 ft, wintering in 15 to 35 ft. Top water on the chart: Shallow bay flat, a weed flat in the 5 ft range, prime in spring. Time it for early morning and the evening. Summer baits: a texas-rigged 10" worm or a deep-diving crankbait gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Shallow bay flat (5 ft) | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Back-bay flat (8 ft) | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Secondary point (11 ft) | Squarebill crankbait (shad), Spinnerbait |
| Winter | 15 to 35 ft | midday | Break off the point (17 ft) | Blade bait, Jigging spoon |
Spring white bass on Lake Marble Falls hold shallow, usually 2 to 12 ft. They move out to 8 to 25 ft in summer and finish the year down in 15 to 40 ft. Put Colorado River inflow first on the milk run — an inflow / creek mouth near 2 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a slab spoon or a small topwater (schooling fish).
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 12 ft | dawn & dusk | Colorado River inflow (2 ft) | Curly-tail jig (white), Small lipless crank |
| Summer | 8 to 25 ft | dawn & dusk | Main-lake point (18 ft) | Slab spoon, Small topwater (schooling fish) |
| Fall | 6 to 25 ft | dawn & dusk | Main-lake point (18 ft) | Jigging spoon, Blade bait |
| Winter | 15 to 40 ft | midday | Deep basin (44 ft) | Jigging spoon (deep), Blade bait |
Start shallow in spring: crappie sit in 2 to 8 ft that time of year. Summer pushes them deeper, 10 to 25 ft, and winter fish settle into 15 to 35 ft. The spot to know is Shallow bay flat, a weed flat in about 5 ft of water that rates prime for crappie in spring. Warm-month bites cluster around early morning and the evening. Throw a jig trolled/spider-rigged or a small crankbait (trolled) until the fish tell you otherwise.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | midday & dawn | Shallow bay flat (5 ft) | 1/16 oz jig + tube, Curly-tail grub |
| Summer | 10 to 25 ft | dawn & dusk | Break off the point (17 ft) | Jig trolled/spider-rigged, Small crankbait (trolled) |
| Fall | 8 to 20 ft | dawn | Back-bay flat (8 ft) | Jig + minnow combo, Small swimbait (1.5-2") |
| Winter | 15 to 35 ft | midday | Break off the point (17 ft) | Tungsten jig + soft plastic, Tiny jigging spoon |
The spring pattern is a shallow one: channel catfish in 3 to 12 ft. As the season builds they drop to 8 to 25 ft, wintering in 20 to 40 ft. Top water on the chart: Flatrock Creek inflow, an inflow / creek mouth in the 5 ft range, prime in spring. Time it for after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 12 ft | dusk | Flatrock Creek inflow (5 ft) | |
| Summer | 8 to 25 ft | night & dusk | Shallow feeding flat (17 ft) | |
| Fall | 10 to 30 ft | dusk | Shallow feeding flat (17 ft) | |
| Winter | 20 to 40 ft | midday | Deep basin (44 ft) |
Early season blue catfish use the shallows, holding in 5 to 25 ft. Summer is a 10 to 40 ft game here, winter a 20 to 50 ft one. The chart's best answer is Deep basin — deep basin, 44 ft, prime for winter. Best bite is early morning and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 25 ft | dusk | Flatrock Creek inflow (5 ft) | |
| Summer | 10 to 40 ft | dawn & dusk | Shallow feeding flat (17 ft) | |
| Fall | 15 to 45 ft | dusk | Deep basin (44 ft) | |
| Winter | 20 to 50 ft | midday | Deep basin (44 ft) |
Spring puts flathead catfish in skinny water — 5 to 20 ft is the zone. As the season builds they drop to 8 to 30 ft, wintering in 20 to 45 ft. Winter flathead catfish concentrate at Deep basin, a prime-rated deep basin around 44 ft. Warm-month bites cluster around after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | night & dusk | Flatrock Creek inflow (5 ft) | |
| Summer | 8 to 30 ft | night & dusk | Break off the point (17 ft) | |
| Fall | 10 to 35 ft | night & dusk | Break off the point (17 ft) | |
| Winter | 20 to 45 ft | midday | Deep basin (44 ft) |
The chart marks 9 structure features on Lake Marble Falls; the deepest is Deep basin at about 44 ft.
Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.
| Date | Species | Count | Size |
|---|---|---|---|
| 2026* | Lone Star Bass (fingerling) | 33,564 | — |
| 2025* | Lone Star Bass (fingerling) | 37,100 | — |
| 2024* | Lone Star Bass (fingerling) | 32,968 | — |
* Approximate date (agency reports month or season only). Source: TPWD stocking history, retrieved 2026-08-18.
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 Marble Falls specifically, so confirm the current rules before you fish.
Check the official Texas fishing regulations →
Lake Marble Falls is about 59 ft (18 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, white bass, crappie, channel catfish, blue catfish, flathead catfish on Lake Marble Falls.
Shallow bay flat is the top-rated area: a weed flat in about 5 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated 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.
Yes — per TPWD stocking history records, Lake Marble Falls was most recently stocked 2026 with 33,564 lone star bass (fingerling). The full stocking history is listed above.
Fishing on Lake Marble Falls 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.
Lake LBJ 8 mi · Inks Lake 14 mi · Lake Travis 15 mi · Lake Buchanan 21 mi · Lake Austin 30 mi · Lake Georgetown 33 mi · Lady Bird Lake 38 mi · Walter E. Long Lake 45 mi · Canyon Lake 47 mi · Llano River 48 mi · Stillhouse Hollow Lake 52 mi · Guadalupe River (Canyon Tailwater) 53 mi
See how Lake Marble Falls stacks up: best largemouth bass lakes in Texas · best white bass lakes in Texas · best crappie lakes in Texas · best channel catfish lakes in Texas
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.