Jehnsen Lake
depth
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Depth scale
Survey readout
Jehnsen Lake is mapped to a depth of 18 ft on the Michigan DNR survey and covers about 290 acres in Mecosta County, Michigan.
Measured from the Michigan DNR inland-lake contour survey.
- Deepest sounding
- 18 ft
- Mean depth
- 4.9 ft · estimated
- Surface area
- 290 acres
- Estimated volume
- 1,433 acre-ft · 467M gal
- Shoreline
- 3.83 mi · irregular
- Aquatic vegetation
- 5% of surface · NDVI estimate
- Public access
- Boat Launch
Additional depth details9 contours
- Contour depths
- 0–18 ft
- Recorded point soundings
- 18 ft, 14 ft, 8 ft, 8 ft, 7 ft, 7 ft
97.2% of the surface sits over water shallower than 10 ft; the survey shows 2 distinct basins. Depth, area and volume are estimated from the interpolated survey surface — historical reference, not measurement.
Compare with another lakeProvenance
Sources: MI DNR inland lake contours, USGS 3DEP, USDA NAIP (public domain), OpenStreetMap (ODbL), MI DNR Boat Launches.
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Map details & sources5 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. Colour shows surveyed depth; dark lines are the survey's own isobaths.
- Coordinates
- 43.69965, -85.26246
- MI DNR lake ID
- L2759
- Vertical exaggeration
- 3.0×
- Basemap
- USDA NAIP · public domain
- Model size
- 2.2 MB
Watercraft rules
county-enforced local controls · MI DNROfficial rule details1 rule
Paddling
Paddling Index methodology v1.0 · calculated 2026-08-21Jehnsen Lake has a mostly natural, lightly developed setting, generally sheltered geometry, some nearby classified roads. Watercraft controls: Restricted hours.
Why this score?5 components
Included in the index
| Component | Rating | Points of weight | Measurement |
|---|---|---|---|
| Natural setting | Very Good | 20.2 of 30 | 68% natural land cover within 150 m of shore (10% forest, 56% wetland; 13% developed) |
| Geometric wind exposure | Very Good | 13.8 of 25 | mean fetch 1,185 m · 0% of sampled water within 500 m of shelter · generally short fetch |
| Watercraft controls | Restricted hours | 9.3 of 15 | Restricted hours |
| Public access | Good | 12.8 of 15 | 1 site with DNR boating-facility records · 1 ramp lane · 8 trailer spaces |
| Road isolation | Good | 6.9 of 15 | some nearby classified roads · 22 MDOT-classified segments within 1.2 km, peak 907 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 5% 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 — 10% forest and 56% wetland cover within 150 m of shore
Compare Michigan lakes by Paddling Index →
Fish you might catch
from angler catches4 species with recent evidence in this lake — sized relative to each other. Illustrations are AI-generated representative adults in everyday colours, not photographs (provenance).
Bowfin
Bullhead
Crappie
PumpkinseedFishing rules for this lake Beta
Size and daily limits for the 4 species found here — 4 open to harvest.
These are hook-and-line size, daily limit and season rules. Gear, spearing and bow fishing, spawning closures and rod limits are set by other Fisheries Orders and are not shown here.
From FO-206.26 (eff. 2026-04-01) / FO-215.23A (eff. 2023-09-15) / FO-254.25 (eff. 2025-10-10), checked against the 2026 Michigan Fishing Regulations digest · verified 2026-08-24. Regulations can change — Michigan DNR rules are the controlling source; verify current regulations before fishing. Official regulations
Notable catches
Master Angler program · 1996–2025Trophy-size fish anglers caught here and registered with the DNR — what people have actually caught, distinct from what a survey netted or the state stocked below.
Biggest on record
Bait: cut bait (9) · artificial lure (6) · live bait (4) · leaf worm (1)
Method: still fishing (15) · spincasting (6) · trolling (1)
Non-native species records
No non-native species recorded in the available dataset. This does not confirm that no non-native species are present.
Source: Midwest Glacial Lakes Partnership Conservation Planner; underlying nonindigenous species records from the USGS Nonindigenous Aquatic Species database.
Bait & tackle nearby
licensed retail bait dealers · straight-line distanceJehnsen Lake — common questions
How deep is Jehnsen Lake?
The deepest contour on the Michigan DNR bathymetric survey of Jehnsen 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 Jehnsen Lake?
Jehnsen Lake covers about 290 acres in Mecosta County, Michigan.
What is the average depth of Jehnsen Lake?
The estimated mean depth of Jehnsen Lake is 4.9 ft, calculated from the survey contours.
What fish are in Jehnsen Lake?
Species with survey, catch or recent-stocking evidence include bowfin, bullhead, crappie, pumpkinseed. The page shows the evidence behind each.
Is there public access to Jehnsen Lake?
Yes. The Michigan DNR boat-launch data identifies 1 public access site on Jehnsen Lake, including Jehnsen Lake.
