Indiana Lake Depths
NESW

Little Long Lake

Noble County, Indiana · IN DNR bathymetric survey
63ft Max
depth
73 acres 4 contours
Paddling Index41ModestMedium confidencesheltered geometry
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Depth scale

The lake

Survey readout

Little Long Lake has a reported maximum depth of 63 ft, and covers about 73 acres in Noble County, Indiana. The Indiana DNR survey maps contours down to 40 ft; the depth between 40 ft and 63 ft is interpolated rather than measured. Depths come from the Indiana DNR survey of 2017.

Measured from the Indiana DNR lake bathymetry survey.

Depth below 40 ft is interpolated. The survey's own contours stop at 40 ft, while it reports a maximum of 63 ft. The basin between those two depths is inferred by the model, not measured — so the shape of the deep hole is an estimate, and the deep-spot marker shows the deepest depth actually surveyed.

Deepest mapped contour
63 ft
Survey year
2017
Surface area
73 acres
Shoreline
2.5 mi · irregular
Aquatic vegetation
6% of surface · NDVI estimate
Public access
No public DNR launch identified
Additional depth details4 contours
Contour depths
0–63 ft
Recorded point soundings
40 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
41.46415, -85.26013
IN DNR lake ID
155642328
Vertical exaggeration
1.54×
Basemap
USDA NAIP · public domain
Model size
2.1 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-09-21
41 / 100ModestData confidence: Medium

Little Long Lake has a substantially developed setting, well sheltered geometry, nearby higher-volume roads. No special watercraft restriction is identified in the current source.

Why this score?5 components

Included in the index

ComponentRatingPoints of weightMeasurement
Natural settingModest0.7 of 3526% natural land cover within 150 m of shore (0% forest, 24% wetland; 56% developed)
Geometric wind exposureExcellent26.5 of 29mean fetch 562 m · 41% of sampled water within 500 m of shelter · short fetch in most directions
Watercraft controlsNone identified8.8 of 18No special watercraft restriction identified in the current DNR source. Motors permitted, subject to general law.
Public accessNot listedNo DNR-listed access site. Township, county and road-end launches are not in this source, so this is not evidence that access is poor — the component is excluded and the remaining weights are renormalized.
Road isolationMixed5.0 of 18nearby higher-volume roads · 19 INDOT-classified segments within 1.2 km, peak 16,811 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
Low — wide enough that wakes disperse over most of the lake
Aquatic vegetation
Low — approximately 6% 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 24% 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) 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

17 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 17 species found here — 13 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.
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.
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”)
Bluntnose MinnowOpen to harvestMinimum size: no size limit · Daily limit: none stated (312 IAC 9-7-15) A minnow under the code’s definition (312 IAC 9-6-1). Minnows may be taken at any time of year by minnow trap, dip net, seine, cast net or lawful sport-fishing methods; the section states no bag or size limit, caps transport out of Indiana at 100 minnows in any 24-hour period (licensed bait dealers, scientific-purposes licensees and those commercially raising minnows in private waters for sale excepted), and requires a bait dealer’s license to sell (312 IAC 9-7-15).
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)).
Brook SilversideRule 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.
Brown BullheadOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Bullhead”)
Channel CatfishOpen to harvestMinimum size: no size limit · Daily limit: 10 (312 IAC 9-7-3(b), (d)) The 10 is catfish in aggregate of any size from a lake or reservoir. Of those, not more than one channel catfish 28 inches or longer, one blue catfish 35 inches or longer and one flathead catfish 35 inches or longer per day.
Common CarpOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Carp”)
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.
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.
PumpkinseedRule 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.
Redear SunfishOpen to harvestMinimum size: no size limit · Daily limit: 25 (312 IAC 9-7-14(c))
Spotted GarOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Gar”)
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.
White CrappieOpen to harvestMinimum size: no size limit · Daily limit: 25 (312 IAC 9-7-14(a)) Black and white crappie together.
Yellow BullheadOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Bullhead”)
Yellow PerchOpen to harvestMinimum size: no size limit · Daily limit: no limit (IN DNR 2026-27 guide, statewide table · 312 IAC 9-7-18 (Lake Michigan only)) The code limits yellow perch only on Lake Michigan (15); the DNR's statewide table prints inland perch as unlimited.
Official rule text for this lake
“An individual may take minnows at any time during the year.” — 312 IAC 9-7-15(a), Indiana Administrative Code
“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: (13) Little Long Lake in Noble County.” — 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 2017
293Fish sampled
17Species

Gamefish Largemouth Bass 52 · Bowfin 1 · Channel Catfish 1

Panfish Bluegill 140 · Yellow Perch 9 · Redear Sunfish 4

All survey species17 species

Gamefish

Largemouth Bass52 caught · to 20″
Bowfin1 caught · to 16″
Channel Catfish1 caught · to 27″

Panfish

Bluegill140 caught · to 8″
Yellow Perch9 caught · to 11″
Redear Sunfish4 caught · to 8″
Pumpkinseed2 caught · to 6″
Warmouth2 caught · to 7″
White Crappie2 caught · to 4″
Black Crappie1 caught · to 10″

Bullhead & catfish

Yellow Bullhead15 caught · to 11″
Brown Bullhead1 caught · to 12″

Forage & nongame

Common Carp41 caught · to 30″
Brook Silverside13 caught · to 3″
Spotted Gar7 caught · to 25″
Bluntnose Minnow1 caught · to 2″
Lake Chubsucker1 caught · to 10″
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

1 record

Plants & algae

What does non-native mean?

USGS records identify non-native species that have been documented for this lake or its shoreline. Non-native does not necessarily mean invasive, and historical records do not confirm current presence.

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

Quick answers

Little Long Lake — common questions

How deep is Little Long Lake?

The Indiana DNR reports a maximum depth of 63 ft for Little Long Lake. The survey's own contours reach 40 ft, so the depth below that is interpolated from the reported maximum rather than mapped.

How big is Little Long Lake?

Little Long Lake covers about 73 acres in Noble County, Indiana.

What fish are in Little Long Lake?

Species with survey, catch or recent-stocking evidence include channel catfish, largemouth bass, black crappie, bluegill, bowfin, brown bullhead. The page lists all 17 species and the evidence behind each.

Is there public access to Little Long Lake?

No public launch for Little Long Lake is shown in the Indiana DNR's public access data. That is not the same as the lake being private -- municipal and private ramps are not in that source.

Is the depth of Little Long Lake measured or estimated?

The survey contours reach 40 ft while the survey reports a maximum of 63 ft, so the basin between those depths is inferred by the model rather than measured.