Duely Lake
depth
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Depth scale
Survey readout
Duely Lake is mapped to a depth of 18 ft on the Indiana DNR survey and covers about 17 acres in Noble County, Indiana. Depths come from the Indiana DNR survey of 2019.
Measured from the Indiana DNR lake bathymetry survey.
- Deepest mapped contour
- 18 ft
- Survey year
- 2019
- Surface area
- 17 acres
- Shoreline
- 0.8 mi · lobed
- Aquatic vegetation
- 3% of surface · NDVI estimate
- Public access
- By water from another ramp · Indiana DNR: “Use Village or Knapp Lake”
Additional depth details6 contours
- Contour depths
- 0–18 ft
- Recorded point soundings
- 18 ft
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
- 41.35790, -85.63200
- IN DNR lake ID
- 155642850
- Vertical exaggeration
- 3.0× below the waterline; land at true scale
- Basemap
- USDA NAIP · public domain
- Model size
- 1.1 MB
Paddling
Paddling Index methodology v1.0 · calculated 2026-09-21Duely Lake has a mostly natural, lightly developed setting, well sheltered geometry, little nearby major-road exposure. Watercraft controls: Speed limit.
Why this score?5 components
Included in the index
| Component | Rating | Points of weight | Measurement |
|---|---|---|---|
| Natural setting | Very Good | 21.8 of 30 | 68% natural land cover within 150 m of shore (16% forest, 52% wetland; 0% developed) |
| Geometric wind exposure | Excellent | 25.0 of 25 | mean fetch 359 m · 91% of sampled water within 500 m of shelter · short fetch in most directions |
| Watercraft controls | Speed limit | 9.0 of 15 | Speed limit |
| Public access | Good | 12.8 of 15 | 1 DNR fishing access site · DNR directs boaters to a ramp on connected water |
| Road isolation | Excellent | 12.9 of 15 | relatively isolated from major roads · 1 INDOT-classified segment within 1.2 km, peak 1,207 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 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
- High — 16% forest and 52% wetland cover within 150 m of shore
Compare Indiana lakes by Paddling Index →
Non-native species records
1 recordPlants & algae
How to identify invasive species in Indiana lakes →
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.
Duely Lake — common questions
How deep is Duely Lake?
The deepest contour on the Indiana DNR bathymetric survey of Duely Lake is 18 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 Duely Lake?
Duely Lake covers about 17 acres in Noble County, Indiana.
Is there public access to Duely Lake?
The Indiana DNR lists Duely Lake as open to the public by water rather than from a ramp of its own: its access record reads "Duely Lake (Use Village or Knapp Lake)". The launch is on connected water, not on Duely Lake itself.
