West Twin Lake

West Twin Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Secchi readings are the weakest of the scored parameters, suggesting suspended sediment or algal biomass dominates the optical signal.

Mesotrophic conditions dominate at West Twin Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake bottoms out at 18 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 121 acres, West Twin Lake fits the Minnesota median for monitored lakes, with 2.2 miles of shoreline. Among the 187 graded lakes in St. Louis County, West Twin Lake sits at rank 75, above the county median.

No invasive species are currently listed at West Twin Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye among the lake's 7 documented species — a notable draw for Minnesota anglers. A documented public access point at West Twin Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is supported by multiple sampling years from Minnesota PCA volunteers and partner agencies, giving the letter a reasonably stable foundation.