Cooper's Mill – Chester, New Jersey - Atlas Obscura

Cooper's Mill

Chester, New Jersey

A historic grist mill and active sluice on the Black River. 

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Built in 1826 by Nathan Cooper, Cooper’s Mill is a well-known trail head along the Black River that eventually leads to several waterfalls. However the mill itself is produces a curiosity of its own.

Served by a very leaky sluice which freezes in winter it produces a magnificent ice cave during the cold months. It’s colder there than in the surrounding area, so it freezes sooner and lasts longer.

Be very careful about going inside the ice cave that develops in the winter since it’s extremely slippery. If you do go, wear waterproof boots and stay in the flowing water, rather than on the ice, and you’ll stay standing. Do as little damage as possible to the ice formations.

Cooper’s Mill, though, is an attraction all year long. Known as the site of many state-of-the-art innovations of its time; it always kept current on the latest designs. Many were dreamed up and implemented by inventor Oliver Evans, whose ideas revolutionized the milling process by automating it.

Powered by the natural flow of water, the mill both a huge man-made achievement and environmentally friendly. The 16-foot water wheel at the mill weighs about 13,000 pounds, but it only takes about two cups of water in less than half of the 48 buckets on the wheel to keep it spinning at four RPM. The wheel is most efficient at eight RPM, where it can create up to 45 horsepower.

Know Before You Go

Take NJ Route 206 north from US-78 or south from US-80 to the intersection with route 513 and turn west (left from south, right from north) about 1.2 miles. Parking lot is on the left. Stop in at Alstede Farm for great produce and fantastic fruit pies in the fall.

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June 5, 2011

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