The Coudersport Ice Mine is an ice cave located in Sweden Township, Pennsylvania, (east of Coudersport) that forms icicles in the spring and summer but not in the winter. Ice formations appear in the shaft during the spring of the year, continue through the hot weather, and disappear in winter. Ice appears in various shapes and forms, often as huge icicles measuring from 1 to 3 feet (0.91 m) in thickness, and from 15 to 25 feet (7.6 m) in length; the ice is generally clear and sparkling.With our international travel planner, Coudersport attractions like Coudersport Ice Mine can be center stage of your vacation plans, and you can find out about other attractions like it, unlike it, near it, and miles away.
A theory about the origin of this mine states that during the winter, cold air over the hilltop sinks into rock openings in the Lock Haven Formation (Devonian age) and slowly expels the warm air that had penetrated these openings during the preceding summer. Ordinarily this process takes place locally, but here the interconnection of the rock crevices tends to be so arranged that the air circulation over a wide region is focused on one spot. Thus, from April or May to September, cold air comes in contact with percolating groundwater, forming ice during the hot months of the year; from September to late spring, warm air trapped in the rocks from the preceding summer escapes and melts the ice.
Discovered in 1894, the cave is about 40 feet (12 m) deep, about 8 feet (2.4 m) wide, and 10 feet (3.0 m) long. The cave was open to the public for many decades but had closed.
The ice mine property was purchased by new owners who began a restoration in 2013. After being closed for nearly a quarter of a century, the Coudersport Ice Mine was re-opened in 2014.
Coudersport Ice Mine reviews
Family trip to see the ice mine while we were in the area- really neat place and educational, tucked away in the country- nice drive, friendly and knowledgeable staff- take a jacket- it is chilly..... more »
Although it is a quick out of the way trip, it is well worth it to see this phenomenon. We went in mid august when the ice is going away, they recommend going around Memorial day when it opens. more »
Although not much to it, it is very fascinating and definitely worth it to stop & visit. I would suspect certain times of the year are more fascinating than others. Amazing!👍👍
Fascinating attraction, a natural ice deposit that forms in the middle of the summer. An all-together very interesting attraction.
Plan your trip to Coudersport
Get a personalized tripA complete day by day itinerary
based on your preferences
Customize itRefine your trip. We'll find the
best routes and schedules
Manage itEverything in one place.
Everyone on the same page.
Popular things to do in Coudersport
Trips to Coudersport Ice Mine by other users
60 days in Clearfield BY A USER FROM UNITED STATES McKean County Historical Society · Kinzua Bridge State Park · Blackbird Distillery 60 days in Clearfield BY A USER FROM UNITED STATES McKean County Historical Society · Kinzua Bridge State Park · Blackbird Distillery 3 days in Coudersport BY A USER FROM UNITED STATES Potter County Historical Society Museum · Cherry Springs State Park · Coudersport Ice Mine 27 days in Bradford BY A USER FROM UNITED STATES Fenton History Center · Panama Rocks Scenic Park · Chautauqua Lake 3 days in Duncannon, Cooksburg & Galeton BY A USER FROM UNITED STATES Duncannon · Cooksburg · Galeton 10 days in Coudersport BY A USER FROM UNITED STATES Kane Historic Depot and Museum · Kinzua Bridge State Park · Zippo / Case Museum & Flagship Store