Outlet of Ogechie Lake on the Rum River

Outlet of Ogechie Lake on the Rum River earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Mille Lacs County. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

Trophically, Outlet of Ogechie Lake on the Rum River reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. A maximum depth of just 6 ft means sediment-bound phosphorus releases back into the water column whenever wind stirs the bottom — a classic shallow-lake dynamic. At 409 acres, Outlet of Ogechie Lake on the Rum River fits the Minnesota median for monitored lakes, with 6.2 miles of shoreline. Within Mille Lacs County's 11 graded lakes, Outlet of Ogechie Lake on the Rum River ranks 8 — below the local median, though not at the bottom.

Outlet of Ogechie Lake on the Rum River is on the Minnesota infested-waters list for zebra mussels — boaters should follow clean-drain-dry protocols when moving gear to or from the lake. The state fisheries records do not list documented species for Outlet of Ogechie Lake on the Rum River, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.