Round Lake

Ramsey County, Minnesota · MN DNR bathymetric survey

15ft Max
depth

21 acres 3 contours Public access

Paddling Index46Modestsheltered geometry

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Depth scale

051015

The lake

Survey readout

Round Lake is mapped to a depth of 15 ft on the Minnesota DNR survey and covers about 21 acres in Ramsey County, Minnesota. Depths come from the Minnesota DNR survey of 1981.

Measured from the Minnesota DNR lake bathymetric contour survey.

Deepest mapped contour: 15 ft
Survey year: 1981
Surface area: 21 acres
Shoreline: 0.76 mi · round
Aquatic vegetation: 9% of surface · NDVI estimate
Public access: Trailer Launch · Phalen Lake Public Water Access Site · Minnesota DNR site

Additional depth details3 contours

Contour depths: 0–15 ft
Recorded point soundings: 15 ft

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Location

Ramsey County, Minnesota · 15 nearest of 32 lakes · tap a dot for that lake

Chart data

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: 44.99398, -93.06287
MN DNR lake ID: 62001200
Vertical exaggeration: 3.0×
Basemap: USDA NAIP · public domain
Model size: 1.1 MB

Paddling

Paddling Index methodology v1.0 · calculated 2026-09-25

46 / 100ModestData confidence: High

Round Lake has a substantially developed setting, well sheltered geometry, substantial nearby higher-volume roads.

Why this score?5 components

Included in the index

Component	Rating	Points of weight	Measurement
Natural setting	Modest	0.7 of 35	23% natural land cover within 150 m of shore (8% forest, 14% wetland; 64% developed)
Geometric wind exposure	Excellent	29.4 of 29	mean fetch 307 m · 100% of sampled water within 500 m of shelter · short fetch in most 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	Good	15.0 of 18	1 DNR public access site · boat ramp
Road isolation	Modest	0.9 of 18	substantial nearby higher-volume roads · 28 MnDOT-classified segments within 1.2 km, peak 19,528 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 9% 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: Limited — 8% forest and 14% wetland cover within 150 m of shore

Compare Minnesota lakes by Paddling Index →

How this index is calculated. The Paddling Index is a relative composite derived from lake geometry and public land-cover, access and traffic-count 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 for Minnesota lakes: natural setting 35%, geometric wind exposure 29%, public access 18%, road isolation 18%. Motor, speed and no-wake rules are not modeled for Minnesota, and traffic counts cover state, county and some city roads but not township roads. Where a component has no data the remaining weights are renormalized and the confidence rating is lowered; below Medium confidence no number is shown. Minnesota scores are relative to other Minnesota lakes and are not directly comparable with Paddling Index scores on our sister sites, which use different data sources, some with a watercraft-rules component. Sources: MN DNR lake bathymetry outline, USGS/MRLC NLCD Land Cover (2021), MN DNR Water Access Sites and Fishing Piers & Shore Fishing Sites (2026-09) and MnDOT Annual Average Daily Traffic (counts 2015–2025). Conditions change quickly — check current weather and local conditions before going out.

Infested waters listing

1 confirmed, 1 via connection

Mussels & snails

Zebra MusselListed in 2026 because this water is connected to Keller (62-0010). The species has not necessarily been found in this lake.

Plants & algae

Eurasian WatermilfoilConfirmed in this water in 1997 (listed 1997).

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

Quick answers

Round Lake — common questions

How deep is Round Lake?

The deepest contour on the Minnesota DNR bathymetric survey of Round Lake is 15 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 Round Lake?

Round Lake covers about 21 acres in Ramsey County, Minnesota.

Is there public access to Round Lake?

Yes. The Minnesota DNR lists a public access site on Round Lake: a boat ramp with restrooms. It is administered by City of St. Paul. DNR directions: "In Phalen Regional Park in Maplewood, 1960 East Shore Drive."

More lakes in Ramsey County