
“There’s nothing we can date inside, it’s all too old. “We don’t have a good idea of how old these caves are,” says Jo de Waele, a geographer and cartographer also at the University of Bologna. Sauro notes that limestone caves form over hundreds of thousands or a few millions of years his research suggests quartzite caves form over tens of millions of years. Most known caves form in limestone – calcium carbonate – which readily dissolves in water.īut the tepui caves run through quartz sandstone, which is less susceptible to water erosion, so caves form much more slowly. Many of the peculiar, lumpy, silica speleothems that only occur inside quartzite caves are formed by colonies of microorganisms working together on the bacterial equivalent of a skyscraper. Exactly how they form is still a mystery. Some resemble billowing clouds of smoke others look like a spray of mineral mushrooms. The speleothems – stalactites and stalagmites – take fantastic forms. The quartz walls often have a spooky pinkish hue, and organic acids in the water turn the cave streams red. The Main Building, including the gift shop and restrooms, closes at 4:30 pm (30 minutes prior to the close of the property).The caves are “a completely different world”, says Sauro.A crowd-controlled retail operation is available inside the Main Building.Guests will have two hours to complete their walk, are encouraged to maintain 6ft (2m) from other parties, and use the hand sanitizer provided throughout the facilities Gift Shop:.Some boulder caves along the Gorge Trail may be closed all boulder caves may be bypassed.

You will encounter slippery footing and natural and manmade obstacles.

The Main Building is open for reservation check-in, restrooms, limited grab n’ go snacks, and gift shop operations.Entrance to the Main Building is for guests with advance reservations walk-up rates subject to availability.We’ll see you out on the trail for your mountain air adventure! General: We will continue to adjust our operations and safety protocols to protect guests and staff as guidance evolves. Lost River Gorge is also following Attractions/Tourism industry-specific guidance to maintain healthy business operations and a healthy work environment. These protocols follow recommendations and guidelines from the Centers for Disease Control and Prevention (CDC), Equal Employment Opportunity Commission (EEOC), Occupational Safety and Health Administration (OSHA), and US Food and Drug Administration (FDA), in addition to Universal Best Practices and industry specific guidance provided by the NH Governor’s Economic Re-Opening Task Force.

Guests will notice procedures and policies in place across the property, including in the Main Building and along the Gorge boardwalk trail. Lost River Gorge & Boulder Caves is excited to welcome you back for the 2022 season! Our number one priority is the health and safety of our guests and staff.
