Unnamed Lake

On the LakeGrade scale Unnamed Lake grades a B, with clarity at 5.0 ft and 15 µg/L of phosphorus placing it above the Minnesota median. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Minnesota norms.

A TSI near 49 places Unnamed Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. The lake bottoms out at 35 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. The lake is compact at 12 acres, with 0.5 miles of shoreline and little volume to buffer nutrient inputs. Among the 2 graded lakes in Nicollet County, Unnamed Lake sits at rank 1, above the county median.

Unnamed Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The fishery includes walleye alongside the lake's other 6 documented species — a notable draw for Minnesota anglers. The lake lacks a documented public access point, so visitor use is limited. The lake has a partial ice record — 18 observed ice-outs, centered near Mar 27. Multiple sampling years from Minnesota PCA volunteers and partner agencies back the grade, so the letter should hold steady absent a major watershed shift.