Delving Deep: New Hampshire’s Subterranean Marvels – Ruggles Mine, Polar Caves, and Lost River


Greetings, daring adventurers and history buffs! Today, we embark on an extraordinary journey that leads us into the intriguing depths of New Hampshire. Our adventure unfolds at the intersections of geology, history, and daredevil exploration at three phenomenal sites: Ruggles Mine, the Polar Caves, and the Lost River. So, gather your gear, and let’s uncover the secrets embedded in the heart of the Granite State.

Time Warp at Ruggles Mine

Our voyage begins at Ruggles Mine in Grafton County. This historic site, once a bustling mica mine, now sits quietly as a captivating tourist attraction. As you step into the mine, you’re transported back in time, surrounded by shimmering traces of mica and quartz, echoes of the site’s prosperous past.

The caverns and tunnels etched into the granite bedrock – some towering at a staggering 50 feet – are truly a sight to behold. Wander through these remnants of industrious mining activity, and let the enormity of this human endeavor sink in. To top off your visit, feast your eyes on the sweeping view of the Kearsarge Mountain Range, a testament to New Hampshire’s natural grandeur.

Polar Caves: The Chill of History

Our next stop, the Polar Caves, offers a potent mix of natural wonder, adventure, and profound history. Nestled in Rumney, these caves were carved by glaciers during the last Ice Age, leaving behind a labyrinth of passages and chambers waiting to be explored.

Wriggle through tight spaces, feel the cool kiss of the stone walls, and immerse yourself in the awe-inspiring geology of the Polar Caves. As you navigate these chilly, winding paths, you’ll also be treading on a hallowed historical ground.

Beyond its geological significance, the Polar Caves also played a notable role in the Underground Railroad, a network of secret routes and safe houses used by enslaved African-Americans to escape into free states and Canada during the early to mid-19th century. It’s said that these very caves provided a hidden sanctuary for those seeking freedom. As you traverse the Polar Caves, take a moment to reflect on the bravery and resilience of those who passed through here in their quest for liberty.

After your exploration, take the time to meander through the rock garden and visit the petting zoo, a delight for visitors of all ages.

Lost River: The Unseen Journey

Our subterranean adventure concludes at the Lost River Gorge and Boulder Caves in North Woodstock. This site is a mesmerizing mélange of caves, gorges, and waterfalls, knitted together by a river that often goes unseen as it plunges underground – giving the site its name ‘Lost River’.

Experience the thrill of exploration as you navigate through the Boulder Caves, don your helmet and light up your path with a trusty headlamp. Look up to see granite boulders, remnants of an ancient glacial period, towering above you. Don’t forget to pause at the viewing platform for an impressive sight of a 35-foot waterfall cascading into the gorge below.


Exploring these sites offers a remarkable fusion of natural beauty, adrenaline-pumping adventure, and historical richness. Each cave, underground river, and rock formation spins a tale spanning thousands of years. Are you ready to listen? It’s time to fasten your explorer’s hat, immerse yourself in the stories etched into New Hampshire’s underground wonders, and embark on a journey like no other.

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