Port Huron's ice museum, back when winter was the warehouse

Before the refrigerator, ice was a crop you harvested in January. Men drove teams onto a frozen river, scored the surface into a grid, and sawed out blocks the size of a hay bale. The blocks went into a windowless icehouse packed with sawdust, where the cold of one winter could keep a family’s milk and meat cool clear through August. A whole trade grew up around it — and almost none of it survived the electric icebox.

Mickey and Agnes Knowlton spent years chasing down what was left. They collected the tongs and the long ice saws, the spiked picks and the calipers, the horse-drawn wagons that hauled blocks door to door, the cards people set in a front window to tell the iceman how many pounds to leave on the porch. By the time they opened their collection to the public in downtown Port Huron in 1987, it ran to more than 10,000 pieces — by their reckoning the largest gathering of ice-trade tools and memorabilia in the country.

It fits the town. Port Huron sits where Lake Huron pours into the St. Clair River, and the river ran the ice business cold and clear every winter. The work was hard and genuinely dangerous — a man could go through a soft spot and under the sheet in a heartbeat — and it employed crews who never thought of themselves as keeping anything but the dairy from spoiling.

In 2020 the Knowlton family handed the whole thing to the Community Foundation of St. Clair County, which has been cataloging the 10,000-odd pieces one by one. The collection is in storage for now, with the foundation aiming to put the ice tools back on display by 2028. Until then the building downtown runs as Discovery City, a hands-on children’s spot — with a corner still saved for the saws and tongs of the men who once farmed the river for cold.