Robinson Lake

Lake County, Indiana · IN DNR bathymetric survey

14ft Max
depth

17 acres 2 contours Public access

Paddling Index65Mixedmotorboats prohibited · sheltered geometry

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Depth scale

051014

The lake

Survey readout

Robinson Lake is mapped to a depth of 14 ft on the Indiana DNR survey and covers about 17 acres in Lake County, Indiana. Depths come from the Indiana DNR survey of 2024.

Measured from the Indiana DNR lake bathymetry survey.

Deepest mapped contour: 14 ft
Survey year: 2024
Surface area: 17 acres
Shoreline: 0.86 mi · lobed
Aquatic vegetation: 4% of surface · NDVI estimate
Public access: Shoreline · Robinson Park Urban Fishing Site · Indiana DNR site

Additional depth details2 contours

Contour depths: 0–14 ft
Recorded point soundings: 14 ft

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Location

Lake County, Indiana · all 4 lakes · tap a dot for that 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: 41.52501, -87.31164
IN DNR lake ID: 121207814
Vertical exaggeration: 3.0× below the waterline; land at true scale
Basemap: USDA NAIP · public domain
Model size: 0.6 MB

Paddling

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

65 / 100MixedData confidence: High

Robinson Lake has a partly natural setting, well sheltered geometry, substantial nearby higher-volume roads. Watercraft controls: Motorboats prohibited.

Why this score?5 components

Included in the index

Component	Rating	Points of weight	Measurement
Natural setting	Good	13.9 of 30	61% natural land cover within 150 m of shore (30% forest, 3% wetland; 25% developed)
Geometric wind exposure	Excellent	25.0 of 25	mean fetch 358 m · 97% of sampled water within 500 m of shelter · short fetch in most directions
Watercraft controls	Motorboats prohibited	15.0 of 15	Motorboats prohibited
Public access	Good	10.5 of 15	1 DNR fishing access site · shoreline access
Road isolation	Modest	0.8 of 15	substantial nearby higher-volume roads · 16 INDOT-classified segments within 1.2 km, peak 112,183 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 4% 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 — 30% forest and 3% 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.

Quick answers

Robinson Lake — common questions

How deep is Robinson Lake?

The deepest contour on the Indiana DNR bathymetric survey of Robinson Lake is 14 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 Robinson Lake?

Robinson Lake covers about 17 acres in Lake County, Indiana.

Is there public access to Robinson Lake?

Yes, from shore. The Indiana DNR lists a public access site on Robinson Lake: a shoreline fishing site with restrooms. DNR directions: "Robinson Park."

More lakes in Lake County