Indiana Lake Depths
NESW

Pretty Lake

LaGrange County, Indiana · IN DNR bathymetric survey
85ft Max
depth
185 acres 8 contours Public access
Paddling Index47Modestsheltered geometry
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Depth scale

The lake

Survey readout

Pretty Lake has a reported maximum depth of 85 ft, and covers about 185 acres in LaGrange County, Indiana. The Indiana DNR survey maps contours down to 80 ft; the depth between 80 ft and 85 ft is interpolated rather than measured. Depths come from the Indiana DNR survey of 2018.

Measured from the Indiana DNR lake bathymetry survey.

Depth below 80 ft is interpolated. The survey's own contours stop at 80 ft, while it reports a maximum of 85 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
80 ft
Survey year
2018
Surface area
185 acres
Shoreline
2.45 mi · lobed
Aquatic vegetation
3% of surface · NDVI estimate
Public access
Boat Ramp · Indiana DNR site
Additional depth details8 contours
Contour depths
0–85 ft
Recorded point soundings
80 ft
Compare with another 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
41.57541, -85.25031
IN DNR lake ID
155641148
Vertical exaggeration
1.4×
Basemap
USDA NAIP · public domain
Model size
2.1 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-09-21
47 / 100ModestData confidence: High

Pretty Lake has a substantially developed setting, generally 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 settingModest1.2 of 3028% natural land cover within 150 m of shore (4% forest, 21% wetland; 48% developed)
Geometric wind exposureVery Good17.1 of 25mean fetch 856 m · 0% of sampled water within 500 m of shelter · generally short fetch
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
Road isolationGood8.6 of 15some nearby classified roads · 4 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
Low — wide enough that wakes disperse over most of the lake
Aquatic vegetation
Low — approximately 3% 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 — 4% forest and 21% 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

19 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 19 species found here — 13 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.

Blackchin ShinerOpen 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).
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)).
Blackchin ShinerOpen 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).
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”)
Central MudminnowRule 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.
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.
Hybrid 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.
Iowa DarterRule 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.
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))
Rock BassOpen to harvestMinimum size: no size limit · Daily limit: 25 (312 IAC 9-7-11)
Smallmouth 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.
Spottail ShinerOpen 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).
WalleyeOpen to harvestMinimum size: 16" · Daily limit: 6 (312 IAC 9-7-12(b) · north of State Road 26) Walleye minimum here is 16 inches because the lake lies north of State Road 26. The 6 is in any combination of walleye, sauger and saugeye.
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”)
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

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
582Fish sampled
19Species

Gamefish Largemouth Bass 57 · Walleye 9 · Northern Pike 4 · Smallmouth Bass 2

Panfish Bluegill 354 · Redear Sunfish 57 · Yellow Perch 25

All survey species19 species

Gamefish

Largemouth Bass57 caught · to 13″
Walleye9 caught · to 22″
Northern Pike4 caught · to 27″
Smallmouth Bass2 caught · to 14″
Bowfin1 caught · to 24″

Panfish

Bluegill354 caught · to 9″
Redear Sunfish57 caught · to 10″
Yellow Perch25 caught · to 11″
Rock Bass22 caught · to 8″
Green Sunfish10 caught · to 6″
Warmouth9 caught · to 6″
Hybrid Sunfish2 caught · to 7″
Pumpkinseed1 caught · to 4″

Bullhead & catfish

Yellow Bullhead16 caught · to 13″
Brown Bullhead4 caught · to 15″

Forage & nongame

Blackchin Shiner3 caught · to 2″
Spottail Shiner3 caught · to 2″
Iowa Darter2 caught · to 2″
Central Mudminnow1 caught · to 2″
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

5 records
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

Pretty Lake — common questions

How deep is Pretty Lake?

The Indiana DNR reports a maximum depth of 85 ft for Pretty Lake. The survey's own contours reach 80 ft, so the depth below that is interpolated from the reported maximum rather than mapped.

How big is Pretty Lake?

Pretty Lake covers about 185 acres in LaGrange County, Indiana.

What fish are in Pretty Lake?

Species with survey, catch or recent-stocking evidence include largemouth bass, northern pike, smallmouth bass, walleye, bluegill, bowfin. The page lists all 19 species and the evidence behind each.

Is there public access to Pretty Lake?

Yes. The Indiana DNR lists a public access site on Pretty Lake: a boat ramp with restrooms. The DNR records no fee. DNR directions: "Three miles north of South Milford on SR 3, the one mile east on CR 500S, the 1/4 mile south on CR 900E."

Is the depth of Pretty Lake measured or estimated?

The survey contours reach 80 ft while the survey reports a maximum of 85 ft, so the basin between those depths is inferred by the model rather than measured.