Glenn Flint Lake

Putnam County, Indiana · IN DNR bathymetric survey

36ft Max
depth

358 acres 7 contours Public access

Paddling Index67Mixedaway from major roads · sheltered geometry · wooded shoreline

Get directions

Depth scale

0510152025303536

The lake

Survey readout

Glenn Flint Lake is mapped to a depth of 36 ft on the Indiana DNR survey and covers about 358 acres in Putnam County, Indiana. Depths come from the Indiana DNR survey of 2015.

Measured from the Indiana DNR lake bathymetry survey.

Deepest mapped contour: 36 ft
Survey year: 2015
Surface area: 358 acres
Shoreline: 9.07 mi · irregular
Aquatic vegetation: 2% of surface · NDVI estimate
Public access: Boat Ramp · Indiana DNR site

Additional depth details7 contours

Contour depths: 0–36 ft
Recorded point soundings: 36 ft

Compare with another lake

Location

Putnam County, Indiana · the only mapped lake in this county

Chart data

Provenance

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

⚠ Not for navigation

Spot an error? Send a correction

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: 39.72858, -86.93766
IN DNR lake ID: 145163152
Vertical exaggeration: 2.46×
Basemap: USDA NAIP · public domain
Model size: 2.2 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-10-08

67 / 100MixedData confidence: High

Glenn Flint Lake has a mostly natural, lightly developed setting, generally sheltered geometry, limited nearby major-road exposure. No special watercraft restriction is identified in the current source.

Why this score?5 components

Included in the index

Component	Rating	Points of weight	Measurement
Natural setting	Very Good	19.2 of 30	72% natural land cover within 150 m of shore (69% forest, 1% wetland; 12% developed)
Geometric wind exposure	Very Good	17.1 of 25	mean fetch 882 m · 12% of sampled water within 500 m of shelter · generally short fetch
Watercraft controls	None identified	7.5 of 15	No special watercraft restriction identified in the current DNR source. Motors permitted, subject to general law.
Public access	Good	12.8 of 15	1 DNR fishing access site · boat ramp
Road isolation	Very Good	10.3 of 15	limited nearby major-road exposure · 7 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 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: Moderate — 69% forest and 1% 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

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

Common Carp

Channel Catfish

Largemouth Bass

White Sucker

Bass

Gizzard Shad

Golden Shiner

About these fish → the Fish of Indiana guide

Fishing rules for this lake Beta

Size and daily limits for the 14 species found here — 12 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.

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.

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

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.

312 IAC 9-7-12(b)(3) names this water: Saugeye here must be at least 14 inches (312 IAC 9-7-12(b)(3)); statewide there is no minimum. Still 6 per day in any combination with walleye and sauger.

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)).

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.

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

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”)

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”)

Gizzard ShadOpen to harvestMinimum size: no size limit · Daily limit: no limit (312 IAC 9-7-14(d) · “Gizzard shad”) No limit on harvest, but live shad may not be kept: live gizzard or threadfin shad may be possessed or used as bait only on eight named waters (Brookville, Cecil M. Harden, Monroe and Patoka reservoirs, Lakes Freeman and Shafer, Hardy Lake, the Ohio River main stem excluding its embayments), and only where collected. Everywhere else shad must be killed immediately (312 IAC 9-6-8(b)–(d)).

Golden 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).

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.

Longear 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.

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

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.

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

“saugeye unless it is at least fourteen (14) inches long and taken from: (C) Glenn Flint Lake in Putnam County.” — 312 IAC 9-7-12(b)(3), 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

1,412Fish sampled

14Species

Gamefish Largemouth Bass 54 · Channel Catfish 27

Panfish Bluegill 167 · White Crappie 84 · Longear Sunfish 39

All survey species14 species

Gamefish

Largemouth Bass54 caught · to 20″

Channel Catfish27 caught · to 21″

Panfish

Bluegill167 caught · to 7″

White Crappie84 caught · to 13″

Longear Sunfish39 caught · to 5″

Black Crappie14 caught · to 10″

Green Sunfish1 caught · to 3″

Bullhead & catfish

Brown Bullhead219 caught · to 14″

Black Bullhead2 caught · to 9″

Forage & nongame

Gizzard Shad540 caught · to 16″

Bass222 caught · to 8″

White Sucker31 caught · to 15″

Common Carp11 caught · to 21″

Golden Shiner1 caught · to 6″

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).

Quick answers

Glenn Flint Lake — common questions

How deep is Glenn Flint Lake?

The deepest contour on the Indiana DNR bathymetric survey of Glenn Flint Lake is 36 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 Glenn Flint Lake?

Glenn Flint Lake covers about 358 acres in Putnam County, Indiana.

What fish are in Glenn Flint Lake?

Species with survey, catch or recent-stocking evidence include channel catfish, largemouth bass, black bullhead, black crappie, bluegill, brown bullhead. The page lists all 14 species and the evidence behind each.

Is there public access to Glenn Flint Lake?

Yes. The Indiana DNR lists a public access site on Glenn Flint Lake: a boat ramp with a boat dock and restrooms. The DNR notes that an entry fee applies. DNR directions: "Four miles southwest of intersection, US 231 and US 36."