📜 Historic cement mine, active from 1825 to 1970, part of the Snyder Estate Natural Cement Historic District. 🔍 Known for its unique acoustics and diverse post-mining uses. # Why Go 🎶 Experience live performances, concerts, poetry festivals, and other events in a unique underground setting. 🚶 Explore a historic site with a small museum and walking trail. 👻 Discover local legends and the purported ghost of Widow Jane. # Why Avoid 🥶 Mine closes when it freezes over in colder months. 🔦 No lights inside, a headlamp is required for exploration. 🌊 80% of the mine is underwater, limiting deep exploration. # Cost 💰 Admission to the site is by donation; museum suggested $5 adults, $1 kids, $10 family. # Hours 🕒 Daily 10 AM to 6 PM (summer), 10 AM to 4 PM (winter); museum Sundays 1 PM to 4 PM. # Tips 🗓️ Check website for event schedules and specific opening dates. 🐶 Doggy docents are on-site to assist visitors.