Size
314ac
Boat Launch
Carry-in Launch
Toilet
Yes
Boat Dock
Species in Mahnomen, Alstead & Arco Mine Lake Chain
Largemouth bass
Rainbow trout
Smallmouth bass
Rock bass
Walleye
Perch
Bluegill
Crappie
Northern pike
Pumpkinseed
Overview
Mahnomen, Alstead & Arco Mine Lake Chain Map
Fishing Regulations
Special Fishing regulations: This lake has special fishing regulations that differ from statewide or border water regulations for those species identified below and take precedence. Regulations listed below are currently in place. Visit the fishing regulations page for links to upcoming regulations for specific lakes.
Location: Including Alstead and Arco Mine Pit
- Lake Trout: All less than 20” must be immediately released, possession limit one.
Weather
83°Feels like 83°
--
55°
--55°5:57 AM
8:47 PM
4 mph
North
0 in
Rain
29.9 inHg
Falling
SaturdaySa
-- / 55°
SundaySu
83° / 61°
MondayMo
85° / 59°
TuesdayTu
76° / 49°
WednesdayWe
78° / 54°
ThursdayTh
82° / 60°
Moon Phase
August 01, 2026
92% Illumination
waning gibbous, getting dimmer
SaturdaySa08/01
SundaySu08/02
MondayMo08/03
TuesdayTu08/04
WednesdayWe08/05
ThursdayTh08/06
FridayFr08/07
Get Your Line in the Right Water
Quickly find the best places to fish and plan your day right.
Top Fish Species
Largemouth bass
9-21 in
Length Range
12 in
Length Range
2022
Surveyed
Abundance (CPUE)
Understanding Abundance
Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time
Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.Species Lengths
