Indiana Lake Depths
NESW

Emma Lake

LaGrange County, Indiana · IN DNR bathymetric survey
30ft Max
depth
41 acres 5 contours Public access
Paddling Index52Modestsheltered geometry
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Depth scale

The lake

Survey readout

Emma Lake is mapped to a depth of 30 ft on the Indiana DNR survey and covers about 41 acres in LaGrange County, Indiana. Depths come from the Indiana DNR survey of 2015.

Measured from the Indiana DNR lake bathymetry survey.

Deepest mapped contour
30 ft
Survey year
2015
Surface area
41 acres
Shoreline
1.63 mi · irregular
Aquatic vegetation
17% of surface · NDVI estimate
Public access
Boat Ramp · Indiana DNR site
Additional depth details5 contours
Contour depths
0–30 ft
Recorded point soundings
30 ft
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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
41.60265, -85.54158
IN DNR lake ID
155641189
Vertical exaggeration
2.66×
Basemap
USDA NAIP · public domain
Model size
1.7 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-09-21
52 / 100ModestData confidence: High

Emma Lake has a substantially developed setting, well sheltered geometry, some nearby classified roads. No special watercraft restriction is identified in the current source.

Why this score?5 components

Included in the index

ComponentRatingPoints of weightMeasurement
Natural settingModest0.6 of 3014% natural land cover within 150 m of shore (0% forest, 14% wetland; 25% developed)
Geometric wind exposureExcellent22.2 of 25mean fetch 565 m · 32% of sampled water within 500 m of shelter · short fetch in most directions
Watercraft controlsNone identified7.5 of 15No special watercraft restriction identified in the current DNR source. Motors permitted, subject to general law.
Public accessGood12.8 of 151 DNR fishing access site · boat ramp · ADA-accessible
Road isolationGood9.1 of 15some nearby classified roads · 3 INDOT-classified segments within 1.2 km, peak 425 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
Moderate — approximately 17% 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
Limited — 0% forest and 14% wetland cover within 150 m of shore
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).

Fishing rules for this lake Beta

Size and daily limits for the 12 species found here — 11 open to harvest.

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.

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”)
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.
No closed season in the fishing code: 312 IAC 9-7 sets no season for these species on inland lakes (trout and salmon “at any time of year”, 9-7-13(d)(1)). Posted property rules can still close a water or bar entry (312 IAC 8-2-1) and 312 IAC 9-6-6 closes a few named areas, so check the property before you go. 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”)
Common CarpOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Carp”)
Golden RedhorseOpen 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.
Green SunfishRule 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.
Largemouth BassOpen to harvestMinimum size: 14" · Daily limit: 5 (312 IAC 9-7-6(a), (c)(3)) The 5 is black bass in aggregate — any combination of largemouth, smallmouth and spotted bass — not 5 of each.
Northern PikeOpen to harvestMinimum size: 24" · Daily limit: 3 (312 IAC 9-7-5(a), (b)) No more than one of the three may be over 30 inches.
Spotted GarOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Gar”)
White SuckerOpen 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.
Yellow BullheadOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Bullhead”)

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 2010
259Fish sampled
12Species

Gamefish Largemouth Bass 70 · Bowfin 1 · Northern Pike 1

Panfish Bluegill 132 · Black Crappie 2 · Green Sunfish 1

All survey species12 species

Gamefish

Largemouth Bass70 caught · to 18″
Bowfin1 caught · to 28″
Northern Pike1 caught · to 24″

Panfish

Bluegill132 caught · to 9″
Black Crappie2 caught · to 6″
Green Sunfish1 caught · to 5″

Bullhead & catfish

Yellow Bullhead3 caught · to 13″
Brown Bullhead1 caught · to 12″

Forage & nongame

White Sucker37 caught · to 17″
Golden Redhorse5 caught · to 18″
Spotted Gar4 caught · to 21″
Common Carp2 caught · to 32″
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

Emma Lake — common questions

How deep is Emma Lake?

The deepest contour on the Indiana DNR bathymetric survey of Emma Lake is 30 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 Emma Lake?

Emma Lake covers about 41 acres in LaGrange County, Indiana.

What fish are in Emma Lake?

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

Is there public access to Emma Lake?

Yes. The Indiana DNR lists a public access site on Emma Lake: a boat ramp with ADA access. The DNR records no fee. DNR directions: "From Emma, Topeka Rd to CR 600W."