09/24/2026
Before refrigerators existed, Maine kept much of America's food cold, and the business of cutting frozen river water into giant blocks once rivaled the state's timber industry in scale.
Every winter along the Kennebec River, crews would score the frozen surface into massive grids and cut it into blocks weighing hundreds of pounds apiece using long ice saws and horse-drawn plows, a process called ice harvesting. The blocks were hauled by horse teams into enormous wooden ice houses lining the riverbanks, some capable of storing well over 50,000 tons at once, insulated with sawdust to keep the ice frozen through summer. From there it was loaded onto ships bound for Boston, New York, and even as far as the Caribbean and South America, where New England's natural ice cooled everything from household iceboxes to shipments of fresh fish and meat.
At its peak in the late 1800s, the Kennebec ice trade employed thousands of seasonal workers and made towns like Hallowell, Gardiner, and Richmond genuinely important players in a national and international market. It was dangerous, physical work done in brutal cold, and it disappeared almost entirely within a generation once mechanical refrigeration became affordable, leaving the river's ice houses to rot and eventually vanish from towns that had once organized their whole winter economy around them.
It's strange to think an entire industry once depended on Maine winters being cold enough, on schedule, every single year ❄️. Can you think of another industry that vanished that completely once new technology made it obsolete?