Birch Lake

Sawyer, Washburn County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)364
Maximum Depth (ft)73
Mean Depth (ft)24
Shoreline (miles)
Bottom Composition0% sand, 15% gravel, 85% rock, 0% muck
Water Clarity — Secchi Depth (ft)
Trophic Status
Drainage BasinDRAINAGE
Lake Classlake
Public Access
Township
GPS Coordinates45.66900° N, 91.54400° W
WBIC (DNR ID)2113000

Fish Species

5 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassCommon
Northern PikeCommon
PanfishCommon
WalleyeCommon
Smallmouth BassPresent

Boat Landings

2 landings

NameTypeRampTrailersFee
Boat Landing 1Public
Boat Landing 2Public

Invasive Species

Invasive species have been documented in or near this lake. Please clean, drain, and dry all watercraft and equipment before leaving to prevent spread.

SpeciesStatusFirst Detected
Banded Mystery SnailConfirmed
Chinese Mystery SnailConfirmed
Curly-Leaf PondweedConfirmed
Rusty CrayfishConfirmed

Data sourced from Wisconsin DNR lake surveys. Last scraped: 3/24/2026.

Birch Lake — Facts & Figures | Stay Northern