Lake depth chart
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Rating depth structure for rainbow trout.
Recent public catches load as you reach this section.
335-acre lake near Johnsburg. The lake tops out around 40 ft. The depth chart comes from published agency bathymetric survey data, so the contours are survey-derived rather than computer-modeled. What follows comes from the same scoring engine that paints the spots above.
Traced from the shoreline, Thirteenth Lake runs 325 acres with 4.5 miles of edge. The shoreline is moderately structured (index 1.8) — enough points and pockets to pattern. 14% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. Figure 2 mi of water from one end to the other, 0.3 mi at the beam. Closest neighbour on DepthScout: Lake Adirondack, 9 mi northwest of here.
Spring puts brown bullhead in skinny water — 2 to 8 ft is the zone. As the season builds they drop to 3 to 12 ft, wintering in 10 to 25 ft. Spring brown bullhead concentrate at Shallow bay flat, a good-rated feeding flat around 1 ft. Warm-month bites cluster around after dark and the evening.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 8 ft | dusk & night | Shallow bay flat (1 ft) | |
| Summer | 3 to 12 ft | night & dusk | Shallow bay flat (1 ft) | |
| Fall | 5 to 15 ft | dusk | open water | |
| Winter | 10 to 25 ft | midday | open water |
In spring, rainbow trout run shallow here, mostly 5 to 20 ft. Midsummer fish sit out in 8 to 30 ft before dropping to 8 to 40 ft for winter. Winter rainbow trout concentrate at Break off the point, a prime-rated drop-off around 38 ft. Fish it in early morning and the evening and you'll meet the bite. You won't need more than a dodger + spoon (deep troll) or a flutter spoon most summer days.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (1 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Shallow feeding flat (20 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Break off the point (38 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (38 ft) | Jigging spoon, Tube jig (white) |
Spring puts brook trout in skinny water — 2 to 15 ft is the zone. Warm water sends them out to 10 to 30 ft; cold water stacks them in 3 to 20 ft. Main-lake point is the standout, a point at roughly 1 ft, rated prime for spring brook trout. Plan around early morning and the evening in the warm months. A small spoon fished deep or a trolled lake-clear wobbler + worm covers the summer program.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 2 to 15 ft | dawn & dusk | Main-lake point (1 ft) | Small inline spinner (gold), Tiny spoon |
| Summer | 10 to 30 ft | dawn & dusk | Break off the point (38 ft) | Small spoon fished deep, Trolled lake-clear wobbler + worm |
| Fall | 2 to 15 ft | midday & dawn | Main-lake point (1 ft) | Small spoon (orange), Spinner |
| Winter | 3 to 20 ft | dawn | Shallow feeding flat (20 ft) | Small jigging spoon, Tungsten jig + plastic |
When the water first warms, brown trout slide up into 3 to 25 ft. Summer is a 12 to 40 ft game here, winter a 5 to 35 ft one. Start at Break off the point. It's a drop-off holding about 38 ft of water and rates prime come summer. The feeding windows run after dark and early morning. Keep a spoon at the thermocline or a deep stickbait (night) rigged through the warm months.
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 | 3 to 25 ft | dawn & dusk | Main-lake point (1 ft) | Stickbait off planer boards (shallow), Small spoon along mud lines |
| Summer | 12 to 40 ft chart-limited; documented 25 to 60 ft | night & dawn | Break off the point (38 ft) | Spoon at the thermocline, Deep stickbait (night) |
| Fall | 5 to 30 ft | dusk & dawn | Main-lake point (1 ft) | Jerkbait over gravel, Casting spoon |
| Winter | 5 to 35 ft | dawn | Break off the point (38 ft) | Jigging spoon, Small stickbait (slow) |
Spring puts splake in skinny water — 5 to 25 ft is the zone. As the season builds they drop to 12 to 40 ft, wintering in 9 to 40 ft. Summer splake concentrate at Break off the point, a prime-rated drop-off around 38 ft. Warm-month bites cluster around early morning and the evening. A trolled spoon at the thermocline or a white tube jig (deep) covers the summer program.
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 | 5 to 25 ft | dawn & dusk | Main-lake point (1 ft) | Small casting spoon (gold/orange), Inline spinner |
| Summer | 12 to 40 ft chart-limited; documented 25 to 60 ft | dawn & dusk | Break off the point (38 ft) | Trolled spoon at the thermocline, White tube jig (deep) |
| Fall | 10 to 35 ft | dawn & dusk | Break off the point (38 ft) | Casting spoon, Jerkbait |
| Winter | 9 to 40 ft chart-limited; documented 10 to 45 ft | dawn | Break off the point (38 ft) | Jigging spoon tipped with minnow head, Small white tube |
7 pieces of structure are mapped here — Deep basin, around 40 ft, is the deepest of them.
Access data: New York State DEC — Boat Launches (FishNY). Confirm conditions and fees locally before you launch.
| Date | Species | Count | Size |
|---|---|---|---|
| November 2025* | Splake | 1,000 | ~5.9" |
| May 2025* | Rainbow Trout | 590 | ~9.5" |
| May 2025* | Rainbow Trout | 241 | ~15" |
| April 2025* | Splake | 2,410 | ~8.1" |
| April 2025* | Rainbow Trout | 2,800 | ~9.25" |
| October 2024* | Brook Trout | 2,050 | ~4.4" |
| April 2024* | Splake | 2,020 | ~8.3" |
* Approximate date (agency reports month or season only). Source: NYSDEC fish-stocking lists, retrieved 2026-09-23.
Season dates, license requirements, and size and bag limits for New York waters are set by the New York DEC — and special regulations can apply to Thirteenth Lake specifically, so confirm the current rules before you fish.
Check the official New York fishing regulations →
Thirteenth Lake is about 40 ft (12 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 brown bullhead, rainbow trout, brook trout, brown trout, splake on Thirteenth Lake.
Break off the point is the top-rated area: a drop-off in about 38 ft of water that rates prime for splake in summer. The interactive chart above rates every spot for each species and season.
For brown bullhead, the summer bite is best in after dark 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 NYSDEC fish-stocking lists records, Thirteenth Lake was most recently stocked November 2025 with 1,000 splake. The full stocking history is listed above.
Fishing on Thirteenth Lake is regulated by the New York DEC. Check the official New York regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Lake Adirondack 9 mi · Indian Lake 10 mi · Loon Lake 14 mi · Sprague Pond 14 mi · Lewey Lake 14 mi · Lake Durant 17 mi · Schroon Lake 18 mi · Rich Lake 19 mi · Blue Mountain Lake 20 mi · Lake Pleasant 20 mi · Brant Lake 21 mi · Sacandaga Lake 21 mi
See how Thirteenth Lake stacks up: best rainbow trout lakes in New York · best brown trout lakes in New York · best brook trout lakes in New York · best splake lakes in New York
Browse all New York fishing maps. 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.