Lake Byllesby
depth
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Depth scale
Survey readout
Lake Byllesby is mapped to a depth of 50 ft on the Minnesota DNR survey and covers about 1,360 acres in Dakota County, Minnesota. Depths come from the Minnesota DNR survey of 1958.
Measured from the Minnesota DNR lake bathymetric contour survey.
- Deepest mapped contour
- 50 ft
- Survey year
- 1958
- Surface area
- 1,360 acres
- Shoreline
- 12.48 mi · irregular
- Aquatic vegetation
- 4% of surface · NDVI estimate
- Public access
- Trailer Launch · Cannon River, Lake Byllesby (W) Public Water Access Site · Minnesota DNR site · 3 more
Additional depth details6 contours
- Contour depths
- 0–50 ft
- Recorded point soundings
- 50 ft, 15 ft
Provenance
Sources: MN DNR Lake Bathymetric Contours, 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
- 44.51527, -92.96940
- MN DNR lake ID
- 19000600
- Vertical exaggeration
- 1.98×
- Basemap
- USDA NAIP · public domain
- Model size
- 2.2 MB
Paddling
Paddling Index methodology v1.0 · calculated 2026-09-25Lake Byllesby has a mixed natural and developed setting, notable open-water exposure, substantial nearby higher-volume roads.
Why this score?5 components
Included in the index
| Component | Rating | Points of weight | Measurement |
|---|---|---|---|
| Natural setting | Mixed | 12.5 of 35 | 47% natural land cover within 150 m of shore (16% forest, 20% wetland; 28% developed) |
| Geometric wind exposure | Mixed | 7.6 of 29 | mean fetch 2,410 m · 0% of sampled water within 500 m of shelter · long fetch in some directions |
| Motor & speed rules | Not modeled | — | Minnesota’s lake-by-lake motor, speed and no-wake rules are mostly county and city ordinances, not map data, so they are not part of the Minnesota index. Check local signage and ordinances before going out. |
| Public access | Excellent | 17.6 of 18 | 4 DNR public access sites · carry-in or canoe launch · boat ramp · fishing pier |
| Road isolation | Modest | 3.4 of 18 | substantial nearby higher-volume roads · 13 MnDOT-classified segments within 1.2 km, peak 25,806 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 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 — 16% forest and 20% wetland cover within 150 m of shore
- State water trail
- On a state water trail — Part of a designated Minnesota State Water Trail: Cannon River. · MN DNR State Water Trails
Compare Minnesota lakes by Paddling Index →
Fish you might catch
from DNR surveys & active stocking18 species with recent evidence in this lake — sized relative to each other. Illustrations are AI-generated representative adults in everyday colors, not photographs (provenance).
Flathead Catfish
Common Carp
Bigmouth Buffalo
Freshwater Drum
Golden Redhorse
White Sucker
Shorthead Redhorse
White Bass
About these fish → the Fish of Minnesota guide
Fishery
surveyed 2019Gamefish Walleye 94 · Channel Catfish 76 · Largemouth Bass 40 · Northern Pike 13
Panfish Black Crappie 142 · Yellow Perch 37 · White Crappie 24
All survey species18 species
Gamefish
Panfish
Bullhead & catfish
Forage & nongame
DNR stocking
state stocking record · 2016–2018Fish the Minnesota DNR has planted in this lake — what was added, distinct from what a survey netted above.
Infested waters listing
2 confirmedMussels & snails
Zebra MusselConfirmed in this water in 2024 (listed 2024).
Plants & algae
Flowering RushConfirmed in this water in 2016 (listed 2016).
How to identify invasive species in Minnesota lakes →
What does the infested waters list mean?
The Minnesota DNR lists a lake, river, pond or wetland as infested when it contains an aquatic invasive species that could spread to other waters, or when it is connected to a water where one is present. Activities such as bait harvest and water use are managed differently on infested waters. Check the current list before moving water, bait or equipment.
Source: Minnesota Department of Natural Resources. List of Infested Waters, September 9, 2026. https://www.dnr.state.mn.us/invasives/ais/infested.html
Lake Byllesby — common questions
How deep is Lake Byllesby?
The deepest contour on the Minnesota DNR bathymetric survey of Lake Byllesby is 50 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 Lake Byllesby?
Lake Byllesby covers about 1,360 acres in Dakota County, Minnesota.
What fish are in Lake Byllesby?
Species with survey, catch or recent-stocking evidence include channel catfish, flathead catfish, largemouth bass, northern pike, smallmouth bass, walleye. The page lists all 18 species and the evidence behind each.
Is there public access to Lake Byllesby?
Yes. The Minnesota DNR lists 4 public access sites on Lake Byllesby: Cannon River, Lake Byllesby (W) Public Water Access Site (boat ramp); Lake Byllesby Public Water Access Site (boat ramp); Lake Byllesby, Regional Park Beach (carry-in launch); Byllesby Fishing Pier (public fishing pier).
