Six decades on Pickerel Lake.

John G. Haggstrom settles in Maine Township.

A Swedish immigrant who had spent fourteen years in the stone quarries of Lockport, Illinois, John G. Haggstrom arrives in Otter Tail County in December of 1882 and buys forty acres in the town of Maine. He adds to his farm steadily — thirty-two more acres in 1884, twenty-seven in 1887, twenty-seven again in 1900, another forty in 1907. The Haggstrom family becomes the first substantial landowners along the shore of Pickerel Lake. The development of the lake, a half-century later, will start on land they bought.

Family history adapted from Mason History records via Tom O'Brien.

Haggstrom's Resort opens on the east shore.

Four cabins on the east side of Pickerel Lake, owned and run by Conrad and Tillie Haggstrom (Conrad is John G. Haggstrom's son), become the first organized resort on the water. Shoreline lots sell for $300–$500 for 60 feet of frontage. Families come up from Fargo and the Twin Cities for the walleye and the quiet. Cabins follow, most of them modest places built by hand with rough sawn lumber.

Shady Nook opens on the west shore.

Adolph and Ethel Haggstrom — Conrad's brother — develop a second resort on the west side of the lake: nine cabins, known as Shady Nook. Pickerel is no longer just an east-shore lake. It is a full-circle community with two resorts, both still in the Haggstrom family, on opposite shores.

The Pickerel Lake Club is organized.

A group of cabin owners forms the Pickerel Lake Club with 64 paid memberships. The club's original purpose is modest — coordinate seasonal concerns between neighbors, share the cost of a few shoreline projects, and publish a directory so people who only know each other by boat can reach each other by phone. Over the following years, the lake is stocked with walleye and northern pike by the MN DNR. The club is later renamed the Pickerel Lake Improvement Association.

Membership grows; the weir goes in.

Shoreline lots now sell for $10,000. Membership in the association climbs to a peak of 161 households. A weir is installed to steady lake levels across drought and flood years — one of the association's first durable infrastructure projects. Local rules take shape: lake homes must sit 100 feet back from the shoreline, every property is assigned a fire number, and the first annual Pickerel Lake Directory is printed.

Water quality, sewer, and the boat parade.

Excellent water-quality reports come back year after year. More stocking of walleye and northern pike. Dutch elm disease takes out shade trees across the township. The township begins requiring permits for new construction and for sewer systems on the lake. Community garbage-collection racks go in. The July 4th Boat Parade is formalized — the first year requires a permit. And in 1980, a volunteer begins keeping a ledger of ice-out and ice-in dates. That ledger, still being kept, will eventually span forty-six seasons.

Lakeshore prices climb; tent caterpillars arrive.

A 150-foot lot sells for $300,000. The lake is fully built-up. Tent caterpillar infestations require aerial spraying for the first time, and the Spray Donation Escrow fund is established so the association can pay for treatment without a special assessment. High water levels force property owners along several bays to rip-rap their shorelines to prevent erosion.

Preservation becomes the mission.

The association's stated goal — preserving and protecting Pickerel Lake — becomes the organizing principle for a generation of new projects: shoreline restoration, sewer-system inspections, algae monitoring, and cooperation with UMN Extension and RMB Labs on water testing.

Zebra mussels are confirmed.

On July 11, 2024, an adult zebra mussel a half-inch long is found attached to a clam in the east bay. A follow-up DNR dive on July 16 finds a second adult mussel in the same bay. The Minnesota DNR designates Pickerel Lake an infested water. The association pivots its work: prevention of spread to other lakes, boat-inspection awareness, landing-side signage, and MN Statute 84D.09 compliance become the top of every meeting agenda.

Twelve volunteers, one lake.

The board consists of twelve members elected to three-year terms at the annual meeting, per the PLIA bylaws. Water quality is tested in partnership with RMB Labs, the Minnesota Pollution Control Agency, and UMN Extension. The Spray Donation Escrow funds tent-worm response. Adopt-A-Highway crews clean Highway 74 from Amor to St. James Catholic Church twice a year. And every July, neighbors still gather at a member's home for a potluck and live music.