Vermont’s most famous quarry swimming holes are not in granite at all—Dorset Quarry, one of the oldest marble quarries in the United States, has transformed into a popular swimming hole, while the state’s abandoned granite pits are far more scattered and less documented. If you’re set on a quarry dip, know that only a handful of these spots are actually confirmed for swimming, and several listed online are active industrial sites or lack any official access.
Hidden Swimming Holes in Vermont’s Abandoned Granite Quarries
Vermont’s granite industry left behind over 25 flooded pits in the Barre Town Forest alone, some deep and cold, but local sources do not confirm them as open swimming areas. For a safe and legal dip, your best bet is to stick to the one verified classic—Dorset—and treat the others as scenic stops unless you find posted permission.
1. Dorset Quarry
Dorset Quarry, one of the oldest marble quarries in the United States, has transformed into a popular swimming hole. The deep, clear waters and surrounding marble cliffs create a picturesque setting perfect for a summer dip.
- Location: Dorset, VT
- Features: Crystal-clear water, marble cliffs, picnic spots
- Best Time to Visit: Summer
2. Rock of Ages Quarry
Rock of Ages Quarry, located in Barre, is a massive granite quarry that offers a unique experience—but it is an active show quarry and tourist attraction, not a swimming hole. You can view the deep blue waters and towering granite walls on a tour, but do not expect to take a dip.
- Location: Barre, VT
- Features: Deep blue water, granite walls, historical significance
- Best Time to Visit: Late spring to early fall (for tours, not swimming)
3. Millstone Hill Quarry
Millstone Hill Quarry, part of the Millstone Trails network, provides a secluded and tranquil spot for hikers and history buffs. Surrounded by lush forests and granite remnants, it’s a peaceful place to rest, but no sourced fact confirms it as a swimming hole or gives access details.
- Location: Websterville, VT
- Features: Secluded spot, forested surroundings, hiking trails
- Best Time to Visit: Summer
4. E.L. Smith Quarry
E.L. Smith Quarry, another gem in Barre, offers a serene experience for those who appreciate granite formations and quiet atmosphere. Known for its deep, clear waters, it may look inviting, but no sourced fact documents it as a swimming hole or provides access details.
- Location: Barre, VT
- Features: Clear water, granite formations, quiet atmosphere
- Best Time to Visit: Late spring to early fall (scenic visits only)
5. Adamant Quarry
Adamant Quarry, a lesser-known spot, provides a quiet and refreshing setting amid calm waters and natural surroundings. While it sounds idyllic, no sourced fact confirms it as a swimming hole or offers access information.
- Location: Adamant, VT
- Features: Calm waters, natural surroundings, peaceful environment
- Best Time to Visit: Summer
6. Graniteville Quarry
Graniteville Quarry, located in the small village of Graniteville, offers a hidden spot with clear, cool waters and scenic views. References to “blue quarries” in Graniteville and nearby Barre are anecdotal, so treat this as a scenic landmark rather than a confirmed swimming destination.
- Location: Graniteville, VT
- Features: Clear water, historical site, scenic views
- Best Time to Visit: Late spring to early fall
7. Woodbury Quarry
Woodbury Quarry, surrounded by dense forests and granite cliffs, provides a secluded spot with pristine water and natural beauty. No sourced fact documents it as a swimming hole, so enjoy the view but do not plan on a swim.
- Location: Woodbury, VT
- Features: Pristine water, forested area, granite cliffs
- Best Time to Visit: Summer
8. Groton Quarry
Groton Quarry, located near Groton State Forest, offers a hidden spot with clear waters and stunning surroundings. Its remote location promises peace, but no sourced fact confirms it as a swimming hole or provides access rules.
- Location: Groton, VT
- Features: Clear water, remote location, scenic surroundings
- Best Time to Visit: Late spring to early fall
9. Barre Town Forest Quarry
Barre Town Forest Quarry, nestled within the Barre Town Forest, provides a tranquil spot amid natural beauty. The source notes over 25 abandoned granite quarries here, some flooded and deep, but it does not say they are open for swimming or give official access rules.
- Location: Barre, VT
- Features: Tranquil spot, forested area, natural beauty
- Best Time to Visit: Summer
10. Williamstown Quarry
Williamstown Quarry, a hidden gem in Williamstown, offers a refreshing spot with clear waters and beautiful surroundings. Its secluded location makes it a quiet place to visit, but no sourced fact confirms it as a swimming hole or provides access details.
- Location: Williamstown, VT
- Features: Clear water, secluded spot, scenic views
- Best Time to Visit: Late spring to early fall
Discover Vermont’s Hidden Gems
Vermont’s abandoned quarries offer more than just history—they are windows into the state’s industrial past and, in rare cases, a place to cool off. For those seeking picnic spots or scenic hikes, the Barre Town Forest and Millstone Trails are solid choices, and the tourist attractions at Rock of Ages are worth a visit.
Exploring these quarries can be an adventure. Each one has its own charm and story. Whether you’re looking for a quiet spot to relax or a place to learn about Vermont’s granite heritage, there’s something for everyone.
Remember to respect the environment. Leave no trace and keep these spots beautiful for others. Pack out what you pack in, and follow any local guidelines.
Next time you’re in Vermont, skip the crowded beaches—but check local signs before you dive. Head to these hidden gems for a memorable experience, and make some great memories.
