Shock Lake

Kosciusko County, Indiana · IN DNR bathymetric survey

60ft Max
depth

43 acres 6 contours Public access

Paddling Index91Excellentelectric motors only · sheltered geometry · wooded shoreline

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Depth scale

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The lake

Survey readout

Shock Lake is mapped to a depth of 60 ft on the Indiana DNR survey and covers about 43 acres in Kosciusko County, Indiana. Depths come from the Indiana DNR survey of 2018.

Measured from the Indiana DNR lake bathymetry survey.

Deepest mapped contour: 60 ft
Survey year: 2018
Surface area: 43 acres
Shoreline: 1.27 mi · irregular
Aquatic vegetation: 2% of surface · NDVI estimate
Public access: Boat Ramp · Indiana DNR site

Additional depth details6 contours

Contour depths: 0–60 ft
Recorded point soundings: 60 ft

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Location

Kosciusko County, Indiana · all 14 lakes · tap a dot for that lake

Chart data

Provenance

Sources: IN DNR Lake Bathymetry, USGS 3DEP, USDA NAIP (public domain), OpenStreetMap (ODbL).

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Map details & sources4 sources

All layers registered to one bounding box; positions in WGS 84.

Survey-derived depth contours drape over USGS 3DEP elevation, with a USDA NAIP aerial basemap and OpenStreetMap shoreline. Color shows surveyed depth; dark lines are the survey's own isobaths.

Coordinates: 41.35362, -85.69106
IN DNR lake ID: 155642904
Vertical exaggeration: 1.64×
Basemap: USDA NAIP · public domain
Model size: 1.9 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-09-21

91 / 100ExcellentData confidence: High

Shock Lake has a heavily wooded and largely undeveloped setting, well sheltered geometry, some nearby classified roads. Watercraft controls: Electric motors only.

Why this score?5 components

Included in the index

Component	Rating	Points of weight	Measurement
Natural setting	Excellent	30.0 of 30	98% natural land cover within 150 m of shore (49% forest, 49% wetland; 2% developed)
Geometric wind exposure	Excellent	25.0 of 25	mean fetch 450 m · 71% of sampled water within 500 m of shelter · short fetch in most directions
Watercraft controls	Electric motors only	14.2 of 15	Electric motors only
Public access	Good	12.8 of 15	1 DNR fishing access site · boat ramp · fishing pier
Road isolation	Good	8.7 of 15	some nearby classified roads · 5 INDOT-classified segments within 1.2 km, peak 7,990 vehicles/day

Additional paddling considerations

These describe the lake but are not part of the v1 Paddling Index and do not change the number above.

Wake sensitivity: Moderate — narrow in places — wakes would carry across parts of the lake
Aquatic vegetation: Low — approximately 2% mapped coverage · NAIP aerial imagery (NDVI)
Observed motorized activity: Unknown — No lake-level measurement of boat traffic is available. Legal permission to operate motors is not evidence of use.
Wildlife habitat potential: High — 49% forest and 49% wetland cover within 150 m of shore

Compare Indiana lakes by Paddling Index →

How this index is calculated. The Paddling Index is a relative composite derived from lake geometry and public environmental, access, roadway and watercraft-control data. It is not a user review, a safety rating, or a prediction of an individual outing. Differences of a few points should not be treated as meaningful — an 84 and an 82 are broadly comparable. Components and weights: natural setting 30%, geometric wind exposure 25%, watercraft controls 15%, public access 15%, road isolation 15%; observed motorboat activity is weighted 0% because no defensible lake-level measurement exists. Where a component has no data the remaining weights are renormalized and the confidence rating is lowered; below Medium confidence no number is shown. Sources: USGS NHD waterbody outline, USGS/MRLC NLCD Land Cover (2021), IN DNR Fishing Access Sites (motor restrictions) (2026-08), IN DNR Fishing Access Sites (2026-08) and INDOT Annual Average Daily Traffic (2021). Conditions change quickly — check current weather and local conditions before going out.

Fish you might catch

from DNR surveys

12 species with recent evidence in this lake — sized relative to each other. Illustrations are AI-generated representative adults in everyday colors, not photographs (provenance).

Lake Chubsucker

Starhead Topminnow

About these fish → the Fish of Indiana guide

Fishing rules for this lake Beta

Size and daily limits for the 12 species found here — 8 open to harvest, 1 with a special rule or closed season.

These are hook-and-line size and daily limit rules. The fishing code sets no closed season for these species on inland lakes, but posted property rules can close a water — see the notes. Gear, spearing and bow fishing, netting and bait collection are set by other sections of 312 IAC 9 and are not shown here.

Largemouth BassSpecial rulesLargemouth bass here: 2 per day, at least 18 inches (312 IAC 9-7-6(i)) — not the statewide 5 at 14 inches. Applies here because the lake lies inside Tri-County Fish & Wildlife Area.

Black CrappieOpen to harvestMinimum size: no size limit · Daily limit: 25 (312 IAC 9-7-14(a)) Black and white crappie together.

Beta. This panel is newly published. Every value is transcribed from the Indiana Administrative Code (312 IAC 9-7) and checked against the Indiana DNR's 2026-27 Fishing Regulations Guide, but the coverage and wording are still under review. If anything here disagrees with 312 IAC 9-7 or the Indiana DNR's guide, the DNR is right — the Administrative Code is the legal text; the guide summarizes it.

This lake lies inside Tri-County Fish & Wildlife Area, which 312 IAC 9-7-6(i)(1) names as a whole: largemouth bass are 2 per day at 18 inches on every water of the property. Other property rules (electric motors only) are set by the DNR for the area; the property's seasonal closure is in the season note below.

Seasonal closure — a property rule, not the fishing code: All bodies of water remain closed to visitors, except for registered waterfowl hunters, during waterfowl hunting seasons. Quoted from the DNR's Tri-County Fish & Wildlife Area property page (read 2026-09-17); posted property rules bind under 312 IAC 8-2-1. The DNR gives no calendar dates, so none are shown here — check the property before you go. Outside the closure the fishing code sets no season for these species. The possession limit is twice the daily bag limit (312 IAC 9-1-12.1); fish already processed and stored at your primary residence do not count toward it (312 IAC 9-2-8(d)).

Black CrappieOpen to harvestMinimum size: no size limit · Daily limit: 25 (312 IAC 9-7-14(a)) Black and white crappie together.

BluegillOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Bluegill”)

BowfinOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Bowfin”) Roe must stay intact inside the fish while on or beside the water and until processing begins; once removed, roe may not be screened, washed, processed, preserved, stored, kept, given away, sold or transported without a roe harvester's license (312 IAC 9-7-14(f), (g)).

Brown BullheadOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Bullhead”)

Lake ChubsuckerOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Sucker”) Greater redhorse is endangered in Indiana (312 IAC 9-6-9) and may not be taken — identify redhorse carefully.

Redear SunfishOpen to harvestMinimum size: no size limit · Daily limit: 25 (312 IAC 9-7-14(c))

Redfin PickerelRule not confidently resolvedNot named in 312 IAC 9-7 or in the DNR guide's limits table. Please check with the Indiana DNR (317-232-4200) before keeping this species.

Spotted GarOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Gar”)

Starhead TopminnowRule not confidently resolvedNot named in 312 IAC 9-7 or in the DNR guide's limits table. Please check with the Indiana DNR (317-232-4200) before keeping this species.

WarmouthRule not confidently resolvedNot named in 312 IAC 9-7 or in the DNR guide's limits table. Please check with the Indiana DNR (317-232-4200) before keeping this species.

Yellow BullheadOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Bullhead”)

Official rule text for this lake

“An individual must not take or possess more than two (2) largemouth bass per day, and an individual must not take or possess a largemouth bass unless the largemouth bass is at least eighteen (18) inches long from the following designated waters: (1) Tri-County State Fish and Wildlife Area.” — 312 IAC 9-7-6(i), Indiana Administrative Code

From 312 IAC 9-7 (Sport fishing), Indiana Administrative Code (readopted 2025-03-25), and the 2026-2027 Indiana Fishing Regulations Guide · verified 2026-09-15. Regulations can change — the Indiana Administrative Code (312 IAC 9-7) is the controlling source; verify current regulations before fishing. Official regulations

Compiled from Indiana DNR fishery surveys. Silhouettes are stylized and scaled to typical adult sizes relative to one another. Presence is not a promise — fishing isn’t a sure thing.

Fishery

surveyed 2018

408Fish sampled

12Species

Gamefish Largemouth Bass 84 · Bowfin 5

Panfish Bluegill 284 · Redear Sunfish 11 · Black Crappie 5

All survey species12 species

Gamefish

Largemouth Bass84 caught · to 22″

Bowfin5 caught · to 25″

Panfish

Bluegill284 caught · to 9″

Redear Sunfish11 caught · to 9″

Black Crappie5 caught · to 10″

Warmouth2 caught · to 5″

Bullhead & catfish

Brown Bullhead1 caught · to 12″

Yellow Bullhead1 caught · to 10″

Forage & nongame

Spotted Gar9 caught · to 30″

Redfin Pickerel3 caught · to 12″

Lake Chubsucker2 caught · to 9″

Starhead Topminnow1 caught · to 1″

Length is the largest fish netted in the survey, not an angler record. Source: Indiana DNR fish survey (Indiana Data Hub) (counts summed across survey years).

Non-native species records

No non-native species recorded in the available dataset. This does not confirm that no non-native species are present.

Source: Midwest Glacial Lakes Partnership Conservation Planner; underlying nonindigenous species records from the USGS Nonindigenous Aquatic Species database.

Quick answers

Shock Lake — common questions

How deep is Shock Lake?

The deepest contour on the Indiana DNR bathymetric survey of Shock Lake is 60 ft. That is the deepest depth the historical survey map records, which may differ from the deepest point of the lake itself.

How big is Shock Lake?

Shock Lake covers about 43 acres in Kosciusko County, Indiana.

What fish are in Shock Lake?

Species with survey, catch or recent-stocking evidence include largemouth bass, black crappie, bluegill, bowfin, brown bullhead, redear sunfish. The page lists all 12 species and the evidence behind each.

Is there public access to Shock Lake?

Yes. The Indiana DNR lists a public access site on Shock Lake: a boat ramp with a fishing pier. The DNR records no fee. DNR directions: "At Tri-County Fish and Wildlife Area."

More lakes in Kosciusko County