Mammoth Cave National Park

When looking at a list of the 58 national parks, we realized that a quick weekend trip would allow us to visit one that we hadn't previously visited and hadn't really thought much about before.  Even though approximately 2 million people visit Mammoth Cave each year and it is the largest known cave system in the world at 392 miles and counting, it didn't capture our imagination like the Smokies or many of the western parks.  In other words, it wasn't iconic in our minds.  That changed during our visit in mid-May, 2012.  After reading descriptions of several ranger-led tours of the cave, we decided to take the Historic Tour and the New Entrance Tour.  Tickets for each tour are $12 per person.

Historic Tour

Our tour guide for the Historic Tour was Ranger Eric.  Ranger Amanda followed the group to ensure we all stayed together.  Although the tour limit is 120, we only had 46 people.  Since the cave is out of the weather and at a constant 54 degrees Fahrenheit, any season is a good time to visit.  Unless you have school-age children, there is no need to endure the summer crowds.  The tour starts by walking down the road from the visitor center to the natural or historic entrance to the cave.  Tours have been offered via this entrance since 1816.  Once near the entrance, we had a safety briefing and descended a set of about 100 stairs into the cave.  A steel structure has been erected inside the cave to control human visitation, but still allow air to flow in or out of the cave.

Entrance Stairs

The passageway is of the size one would find in a convention center and is called the Main Cave.  This portion of the trail is constructed of concrete pavers with wooden kick-boards along both sides.  This is a dry portion of the cave, so there are no formations like those found at Carlsbad Caverns or Lehman Cave.  One of our first stops was at the Rotunda Room.  This room is about 3/4 of an acre or over 30,000 square feet with a height of about 40 feet.  During the War of 1812, about 80 slaves used this room for a portion of their work in converting cave dirt into saltpeter that was then shipped east to make gunpowder. Due to the constant temperature and low humidity of the cave, the remains of their wooden piping and leaching boxes can still be seen as they were abandoned.  The spots visible in the picture are due to the large amount of dust in the air.

Ruins of saltpeter mining in the Rotunda

At the Rotunda, we stayed to the left to walk down Broadway with an average width of 60 feet and height of 40 feet.  There are several stairs in this area and some elevated wooden walkways.  Next, we stopped at a large slab of rock called the Giant's Coffin.  The rock is 50 feet long, 20 feet wide and 16 feet high.  Just to give us a feel for total darkness, Ranger Eric turned off the electric lights for a few moments.  Then, he used a lantern to give us an idea of how the early visitors saw the cave.  In case the lights actually went out, both rangers had flashlights to guide us out or to a cache of additional battery powered lights.  

Giant's Coffin

We then walked behind the Giant's Coffin and down some awkward stairs into the aptly named Dante's Gateway that reminded us of a slot canyon.  We skirted a couple of pits before coming to Bottomless Pit which is 105 feet deep below the trail and another 60 feet above it. Stephen Bishop, a slave guide, was the first person known to cross Bottomless Pit.  He allegedly did this by dragging a cedar tree into the cave and shinnying across it with a lantern in his teeth.  He discovered all the areas we would visit between Bottomless Pit and Mammoth Dome.  Today, there is a steel bridge with sturdy wire mesh sidewalls up to the stainless steel handrails.

Bottomless Pit

Once beyond the pits, we arrived at Fat Man's Misery.  Stephen Bishop and his early tourists had to crawl through this area, but the sand has since been excavated from the narrow winding channel to allow us to walk through in a sideways, slightly stooping manner.  

Fat Man's Misery

Exiting the cramped, narrow passage, we came to Great Relief Hall.  It is currently used as a location for the the group to reconvene after the single-file passage.  Our next stop was to view historic graffiti and learn about how it was created with lantern or candle smoke.  

Historic Graffiti

Flowstone in Mammoth Dome

After crossing through and over a boulder strewn section, we came to 192-foot high Mammoth Dome.  Stephen Bishop considered Mammoth Dome his greatest discovery.  There is a massive flowstone formation in this room.  Here we climbed a steel structure with 155 stairs and several landings. 

Stair Tower

Mammoth Dome from the Stair Tower

At the top of the stairs, we entered a passageway called Little Bat Avenue that led back to the Rotunda and then out the Main Cave to the historic entrance.  

The Rotunda...again 

Daylight!

Once at the top of the stairs, everyone is required to walk across the bio-security mats in an effort to prevent the spread of White-Nose Syndrome to additional bats.

Surface Trails

Between cave tours, we drove back out the Cave City Road to the entrance sign and strolled along the 0.1 mile Sand Cave Trail elevated boardwalk.  This pleasant walk has several interpretive signs to commemorate the failed rescue attempt of Floyd Collins in 1925.  

Sand Cave Boardwalk

Sand Cave

Back at the Visitor Center, we walked the 0.3 mile wheelchair accessible Heritage Trail to Sunset Point.  Bearing left at the split in the trail, we also chose to walk the 0.1 (or 0.2 depending on the signs) mile gravel path to the Mammoth Dome Sink scenic overlook.  Other than a bench marking the end of the trail, we didn't find anything that resembled an overlook.  Back on the main trail, we paused at Sunset Point until it started raining.  The combination of a dense forest canopy and a short duration rain event left us damp but not soaked.  

View down the Green River valley from Sunset Point

New Entrance Tour

This tour requires a short bus ride going and coming.  From the drop off point, we walked down into the sinkhole and then through a door into a short tunnel used as an airlock.  After going through the second door, we had the opportunity to peer down into the vertical shaft, or pit, that we would descend.  A series of 280 stairs led us down this pit and into the cave.  

The entrance pit

The trail then traverses a few narrow passageways in an area called the Subway before opening into a large room for this part of the cave called Grand Central.  There are a series of bench seats where we could rest for a minute while listening to Ranger Amanda tell some of the stories of George Morrison, the oilman who created the New Entrance in the 1920s.  There are a number of exits from the aptly named Grand Central.  During the storms that left Nashville flooded a year ago, this room was almost 30 feet underwater.  There is still one bench missing from that flood.

Grand Central

Our tour headed uphill from here to another, larger room with more benches called the Fairy Palace due to the very small stalactites on the ceiling.  

Uphill route out of Grand Central

Small stalactite formation that gave the Fairy Palace its name

From here we continued on to the Frozen Niagara area and chose to descend the additional stairs into the Drapery Room that is below and behind Frozen Niagara.  On the way out, we saw many additional formations.  Some were so close to the trail that a mesh screen has been installed on the right side to keep people from touching the active formations.  

Frozen Niagara

Drapery Room

Ceiling of the Drapery Room

There are a number of lifeforms in the cave from eyeless, translucent fish to blind cave crickets.  We passed a colony of the crickets clinging to the low ceiling on the way out.  Some people might want to consider wearing a hat.  We exited by way of the Frozen Niagara Entrance.  From here, we boarded the bus and rode uphill past the New Entrance and back to the Visitor Center.

Future Plans

On our next trip, we plan to take the 4-hour Grand Avenue Tour.  Tickets for this tour are currently $24 each.  Hopefully, the rest of the Visitor Center renovations will be complete as well.  The portion that is open is very well done.  In addition, there are miles of bike trails to explore using one the rental bicycles from the camp store.


The park website is http://www.nps.gov/maca.