Mammoth Cave NP
@MammothCaveNP
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We're green & gorgeous. We're dark & mysterious. We're pretty much the total package. Oh, and we're also home to the longest known cave in the whole wide world.
Mammoth Cave, KY
Joined January 2010
Don't wanna be here?
Send us removal request.
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View of the solar eclipse from inside Mammoth Cave.
October 14, 2023.
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This was our view of the Solar Eclipse from inside The Mammoth Cave.
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This is what all 426 miles of Mammoth Cave looks like.
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Today we had a large and unexpected storm come through the park which caused a quick drop in the temperature. This pressure change caused the airflow to reverse, pulling into the cave, resulting in a dense fog filling the Rotunda room!
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Mammoth Cave National Park congratulates 29 individuals from 12 countries who became new US Citizens in today’s underground naturalization ceremony. The park was honored to host the event inside a cave room that was temporarily transformed into a federal courtroom.
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Photos from our New Year’s Eve party.
Happy 2024!!!!
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Our rangers had their glasses on awaiting the view of the solar eclipse inside The Mammoth Cave……
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5th generation guide Jerry Bransford.
Jerry is the great-great grandson of Mat Bransford, who along with Nick Bransford were some of the first enslaved guides to lead visitors through the Mammoth Cave.
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To the left is former enslaved guide Mat Bransford and to the right is Ranger Jerry Bransford. Jerry is the great great grandson of Mat and is a current guide at Mammoth Cave National Park.
#findyourpark
#BlackHistoryMonth2021
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To the left is former enslaved guide Mat Bransford and to the right is Ranger Jerry Bransford. Jerry is the great great grandson of Mat and is a current guide at Mammoth Cave National Park.
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Happy 79th Birthday Mammoth Cave!!!
Mammoth Cave became the 26th National Park on this date in 1941.
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Happy National Kentucky Day. Home of the longest hole in the ground in the world.
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Did you know that Mammoth Cave is the longest mapped and surveyed cave system in the world at 426 known miles?
#nationalcaveweek
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Although it’s a rare occurrence, when the weather is just right, fog will make it’s way into the natural entrance of the cave.
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Happy Birthday to Ansel Adams.
Given his first camera at age 12 during his visit to Yosemite. He developed his early photographic work as a member of the Sierra Club. He was later contracted with the Department of the Interior to make photographs of national parks.
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Happy Birthday to us!!!
🥳🎂🎉
On July 1, 1941, Mammoth Cave became our 26th National Park.
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Mammoth Cave just became a little more “Mammoth”!
We are now officially 426 miles. This announcement comes during the park’s 50th anniversary celebration of the Flint Ridge-Mammoth Cave connection which earned us the title of longest cave in the world.
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It is so peaceful listening to the running water after a good rain in Mammoth Cave National Park.
#findyourpark
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On September 18, 1946, Mammoth Cave was officially dedicated as the 26th unit of the National Park Service.
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Beautiful sky this evening at Mammoth Cave National Park.
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Happy Independence Day from Mammoth Cave National Park! 🗽Be sure to stay cool while you celebrate the red, white, and blue! 🎇Remember, no fireworks are allowed in the park.
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It’s National Cave Week!
Yep, that’s kind of a big deal around here!!
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Today is National Take a Hike Day. Mammoth Cave National Park has over 80 miles of hiking trails. Come take a hike in our beautiful park!
#TakeAHikeDay
#FindYourPark
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An ancient artifact has recently been discovered deep inside The Mammoth Cave.
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Today is World Animal Day.
Mammoth Cave is home to over 100 species of animals and insects. Most of these animals never leave the dark environment of the cave and are eyeless & translucent. Below is a cave crayfish (Cambarus aculabrum)
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The beauty of Mammoth Cave National Park in the fall!!
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After yesterday’s tweet, here are some photos of The Mammoth Cave with the lights on!
#findyourpark
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Happy Father’s Day to all the dads out there.
The Mammoth Cave is a “cool” place to celebrate!
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Mammoth Cave National Park sends warm congratulations to the 27 individuals from 20 countries who became
#NewUSCitizens
in today’s underground naturalization ceremony! The park was honored to host this event inside the cave.
For more information visit:
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How about we celebrate National Color Day with some beautiful fall colors?
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Today is National Take a Hike Day. Mammoth Cave National Park has over 80 miles of surface trails that are great for hiking. So give us a visit or go take a hike today on your favorite trails.
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Jerry Bransford is a 5th generation cave guide at Mammoth Cave. Jerry’s great-great grandfather Mat started guiding tours at Mammoth Cave in 1838 and continued to do so well up into his 70s. Jerry has guided tours at Mammoth Cave for 19 years.
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Frost ribbons in the park this morning!
Frost ribbons or flowers as they are sometimes called, result when freezing temperatures cause sap to freeze and then while expanding extrude through ruptures in the stem of a plant creating long ribbons of ice.
#findyourpark
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The limestone that makes up Mammoth Cave is from an ancient sea that covered the area over 300 million years ago. In this limestone, you will find the fossils of creatures that inhabited this sea.
#nationalcaveweek
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Happy Birthday to us!!
🎂🎉🥳🎊🎁
On July 1, 1941, Mammoth Cave became the 26th national park!!!
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Beautiful photo looking out of the Historic Entrance of Mammoth Cave taken by Ranger Jackie Wheet.
#findyourpark
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Did you know that Mammoth Cave is home to over 160 species of animals? Below is a crayfish that makes their home in the underground rivers of the cave. These animals live their entire life in total darkness, as a result of this they are eyeless and translucent.
#nationalcaveweek
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After months of renovations, the lobby, gift shops and snack shop are now open. The main dining room and meeting rooms are not completed at this time, but should be ready soon.
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The natural Historic Entrance to The Mammoth Cave in the fall.
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Awesome photo taken of the Mammoth Dome by a visitor on the Extended Historic tour.
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The World’s Longest Cave Is Now Even Longer!!
Explorations by the Cave Research Foundation has revealed 8 new miles to Mammoth Cave making the total count 420 known miles of passages! When it comes to discoveries in Mammoth Cave, there truly is no end in sight!
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There is not anything much better than seeing The Mammoth Cave by lantern light.
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Have we ever said how cool it is to see The Mammoth Cave by lantern light?
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The normally tranquil Echo River Spring is erupting like an aqua volcano this morning after last night's storms!
#FindYourPark
#MammothCave
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Yep, we are the longest cave in the world, but did you know that we have over 80 miles of hiking trails above ground? Celebrate National Trails Day by hiking one of our many trails.
For more information visit:
#NationalTrailsDay
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Happy World Ranger Day!!
Than You to all the rangers throughout the world that help to protect our parks and natural resources. We also want take time to honor the many rangers who have been injured or killed in the line of duty while protecting national and state parks.
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Roses are red,
Violets are blue,
We have a Valentine inside The World’s Longest Cave,
Waiting for you!
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It has been confirmed that all 426 miles of Mammoth Cave is actually above ground.
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Drip…..drip…..drip…..
A new cave passage is being developed.
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Sunday, August 4, will be a Fee Free Day for the Great American Outdoors Day. The self guided Discovery Tour will be offered for free that day with no tickets required.
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Today is
#NationalFossilDay
! We are excited to announce the discovery of one of the most diverse examples of Mississippian shark fauna found in North America right here at Mammoth Cave! Learn more at:
#FindYourPark
#FindYourShark
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Ranger Dave telling stories inside The Great Onyx Cave.
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The Dead Sea, one of the many bodies of water found at the lowest levels of the cave.
#nationalcaveweek
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November is Native American Heritage Month. Native Americans explored over 17 miles of Mammoth Cave with cane reed torches as their light source. Curiosity is believed to be the first reason for this exploration, but they also mined gypsum, mirabilite and epsomite from the cave.
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We had some special guests at the evening program last night.
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On September 9, 1972, six people from the Cave Research Foundation entered a cave on Flint Ridge and traveled for twelve hours before they discovered a passageway that connected the Flint Ridge to Mammoth Cave. This connection made Mammoth Cave the longest cave in the world.
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Today, August 4, will be a Fee Free Day for the Great American Outdoors Day. The self guided Discovery Tour will be offered for free today with no tickets required.
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Today is National Native American Heritage Day. Native Americans explored over 17 miles of Mammoth Cave with cane reed torches as their light source. Curiosity is believed to be one reason for this exploration, but they also mined gypsum, mirabilite and epsomite from the cave.
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Hey Ranger, where does that passageway go?
No where, it stays right there!
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The Self Guided Discovery tour will be available today and every day throughout the summer from 10:00 am to 3:00 pm cst.
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Most of Mammoth Cave was formed by underground rivers carving out its passageways, but the cave also has beautiful domes and pits that were created by water flowing vertically. An example of this is the Mammoth Dome.
#nationalcaveweek
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Today is National Trails Day.
Mammoth Cave has over 70 miles of surface trails for all to enjoy.
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On this date in 1984, president Ronald Reagan visited Mammoth Cave National Park.
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On this date in 1926, President Calvin Coolidge signs the bill to make Mammoth Cave a National Park.
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American Bald Eagles are present in Mammoth Cave National Park and have nested near the Green River for the last several years. Two potential nests were spotted at the beginning of March, so there should be baby eagles soon!
#FindYourPark
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In honor of Veterans Day, Mammoth Passage tours will be free of charge on Saturday.
Visitors will still need to obtain a ticket from the visitor center and meet with rangers under shelter A five minutes prior to the scheduled tour time.
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Salt Petre leeching vats as seen from Booth’s amphitheater inside Mammoth Cave.
Salt Petre was extracted from the cave and used to make black gunpowder during the War of 1812.
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