Dorothy 'The Root Beer Lady' Molter at her Knife Lake resort

Dorothy "The Root Beer Lady" Molter, the last full-time resident of Minnesota's Boundary Waters Canoe Area Wilderness. — Source: Wikipedia | Dorothy Molter Museum

Boundary Waters Canoe Area

Molter, Dorothy "The Root Beer Lady" (1907-1986)

Published: February 25, 2025
Updated: June 30, 2026

Dorothy Molter lived in what is now the Boundary Waters Canoe Area for more than 56 years (1930-1986) and was once dubbed "the loneliest woman in America." While her remote surroundings may have earned her this title, her life tells a decidedly different story—one filled with thousands of visitors to her Knife Lake wilderness resort each canoeing season.

Born on May 6, 1907, in Arnold, Pennsylvania, Dorothy was the third of six children born to John "Cap" and Mattie Molter. When her mother died on May 22, 1915, Dorothy and her siblings were placed in a Cincinnati orphanage. This arrangement kept the children together while allowing their father to visit during his railroad leaves. In 1919, "Cap" remarried, reunited with his children, and moved the family to Chicago, Illinois.

In 1924, Dorothy entered Calumet High School, where she participated in tennis, swimming, basketball, and rifle teams. After graduating, she attended Auburn Park Hospital Nursing School to pursue a nursing career. In summer 1930, she made her first visit to Knife Lake, accompanying her father on a fishing trip to Bill Berglund's Isle of Pines resort. Her father had originally planned to go with his wife, brother, and two friends, but when one friend canceled, Dorothy took his place.

The culture shock was immediate. As a big-city outsider, Dorothy was unfamiliar with these isolated surroundings. However, she was fearless and embraced challenges, quickly falling in love with the area. During this visit, she helped out at the resort and returned each season until 1934, when—unable to find nursing work in Depression-era Chicago—she agreed to assist owner-operator Berglund year-round. She provided nursing care, managed his diabetes, and treated paddlers' injuries. When Berglund died in March 1948, Molter became the lodge's owner, as he had wished.

In 1948, lawmakers passed the Thye-Blatnik Act, which authorized the U.S. Forest Service to purchase resorts and private land within the future Boundary Waters Canoe Area Wilderness. The legislation aimed to preserve the area's beauty while compensating local counties for lost tax revenue. The Forest Service approached Molter, but she declined to sell.

On December 17, 1949, President Harry S. Truman issued an executive order prohibiting aircraft from flying below 4,000 feet over the Superior Roadless Area (SRA), which included the Boundary Waters Canoe Area. The order took effect on January 1, 1951. After years of relying on float planes to transport supplies to resorts, the new regulations forced owners—including Dorothy—to find alternative supply methods.

A few non-compliant local pilots continued delivering supplies after the ban, but by 1952 the practice had ended. Uncomfortable with portaging heavy supplies to her resort—especially pop bottles—Molter began making her own root beer. This practice earned her the moniker "The Root Beer Lady," and this, coupled with her dispute with the U.S. Forest Service over her resort land, made her a Northwoods celebrity.

The Saturday Evening Post featured an article about Dorothy Molter in its October 18, 1952 issue, titled "The Loneliest Woman in America." Ironically, despite her physical isolation, Molter was far from alone. Each season, between 6,000 and 7,000 people signed her resort's guestbook—a testament to the steady stream of visitors she welcomed.

In 1964, the Wilderness Act formally established the Boundary Waters Canoe Area, making it illegal for Molter to continue running her resort. Supporters from across the country petitioned for her right to remain on her land, and in 1972 their efforts succeeded when Congress granted her lifetime tenancy. From 1976 to 1986, Dorothy and her helpers continued brewing her famous root beer, producing more than 10,000 bottles each summer.

On December 18, 1986, Molter—the last non-indigenous full-time resident of the Boundary Waters Canoe Area Wilderness—died of natural causes at her resort. She is buried beside her mother in Pennsylvania. Her gravestone bears the epitaph "Nightingale of the Boundary Waters."

Quick Facts

BornMay 6, 1907, Arnold, Pennsylvania
DiedDecember 18, 1986, Knife Lake, BWCAW
Known ForLast full-time resident of the Boundary Waters
Nickname"The Root Beer Lady," "Nightingale of the Boundary Waters"
OccupationResort owner, nurse, root beer brewer
Years in BWCAW1930-1986 (56 years)
Visitors/Season6,000-7,000
Root Beer Production10,000+ bottles per season (1976-1986)

Timeline

May 6, 1907

Born in Arnold, Pennsylvania

May 22, 1915

Mother passed away; placed in Cincinnati orphanage

1919

Father remarried; family reunited, moved to Chicago

1924

Entered Calumet High School

Summer 1930

First visit to Knife Lake, Isle of Pines resort

1934

Moved permanently to assist Bill Berglund

March 1948

Became owner of the resort after Berglund's death

1948

Thye-Blatnik Act passed; declined to sell property

January 1, 1951

Aircraft ban took effect; began making root beer

October 18, 1952

Featured in Saturday Evening Post

1964

Wilderness Act established BWCAW

1972

Granted lifetime tenancy by Congress

1976-1986

Produced 10,000+ bottles of root beer annually

December 18, 1986

Died of natural causes at her resort

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Sources & References

Bibliography

  1. "Dorothy Lucille Molter." Find a Grave - Millions of Cemetery Records. Available online.
  2. Dorothy Molter Museum. "Dorothy Molter Museum: A Little Museum with Great Reach." Wayback Machine. Available online.
  3. "Executive Order 10092—Establishing an Airspace Reservation Over Certain Areas of the Superior National Forest in Minnesota." The American Presidency Project. Available online.
  4. Folkart, Burt A. "Dorothy Molter : Sole Resident of Wilderness Preserve Dies." Los Angeles Times. Last modified December 20, 1986. Available online.
  5. Hanson, Laura. "Molter, Dorothy (1907–1986)." MNopedia, Minnesota Historical Society. Last modified October 25, 2017. Available online.
  6. "Time Can't Erase Spirit of Pioneer." Chicago Tribune. Last modified August 11, 2021. Available online.
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