Mills, Factories and the Working Economy

Aroostook County's manufacturing legacy took hold in its agricultural soils, where the processing of raw harvests into industrial goods formed the backbone of mills, factories and the working economy. In 1870, the county's first potato starch factory opened in Caribou, where Alba Holmes converted an unused woolen mill in 1871 to produce powdered starch for sizing cloth in southern Maine cotton textile mills. Presque Isle established its own factory in 1874 when an entrepreneur named Wheeler arrived from New Hampshire, soon followed by Limestone opening a starch factory along Limestone Stream in 1876. By 1904, 62 starch factories operated across the county, with 20 owned by Presque Isle industrialist Thomas H. Phair, known as the 'Starch King.' By 1930, Aroostook County had become the leading producer of potato starch across both the United States and Canada, supported by community developments like A. P. Bennett's 1878 construction of Maine's first butter factory in Linneus.

Transportation networks expanded in lockstep with these growing operations. The Bangor and Aroostook Railroad brought direct lines to Houlton in 1894, reached Caribou and Fort Fairfield in 1895, and pushed the Ashland Branch north to Fort Kent in 1902 and west to St. Francis in 1909. These routes replaced slower local hauling, allowing forest mills to ship timber and processed wood pulp directly to northeastern urban markets alongside agricultural goods. In Presque Isle, industrialist Arthur R. Gould purchased a sawmill along Presque Isle Stream in 1889, upgrading it to process lumber, shingles, and clapboards before founding the Aroostook Valley Railroad to move supplies and logs. Further north along the Saint John River, Madawaska shifted from an agricultural settlement into an industrial center when Archibald Fraser led Fraser Paper, Limited to open a major paper mill in 1925, running its first Fourdrinier machine by piping slush pulp across the international border.

Over the mid-twentieth and late twentieth centuries, processing innovations shifted regional output toward modern specialty goods and frozen foods. Following work by Caribou inventor O.P. Pierson, the Birds Eye Company began commercially marketing frozen french fries in Caribou in 1947. Canadian processor McCain Foods established its U.S. subsidiary by purchasing an existing Washburn plant in 1975, then acquired an Easton facility in 1976 that grew to process roughly one-third of the county's potatoes. Nearby in Easton, where Fred H. Vahlsing Jr. had built a sugar beet refinery in the 1960s, Huber Engineered Woods repurposed the site in 1983 to manufacture subflooring, oriented strand board panels, and engineered wood flooring. Modern operations remain integral across the county, seen in the McCrum automated frozen potato specialty plant built in Washburn in 2020, the Ashland sawmill operated by Irving Forest Products, Maine Woods Company's commercial hardwood sawmill in Portage Lake, and Columbia Forest Products' hardwood veneer mill on Missile Street in Presque Isle peeling northern hardwoods on a rotary lathe.

The heritage that built these towns is preserved at museums and depots throughout the area. In Frenchville, a 1910 Bangor and Aroostook Railroad station and 40-foot wooden water tank stand alongside the preserved Corriveau Mill records at the University of Maine at Fort Kent, while Van Buren's Acadian Village displays the Violette Grist Mill, Wool Carding Mill, and historic machinery from the 1912 Corriveau Mill. Restored rail depots like the 1902 Fort Kent Railroad Station Museum highlight the freight movement of lumber, shingles, and potatoes. Further south, the Aroostook County Historical and Art Museum in Houlton displays early farmer delivery records and starch industry photography, and the Southern Aroostook Agricultural Museum in Littleton preserves regional trades with an on-site blacksmith shop, barrel-making machinery, and potato grading equipment.