[Answer] Which U.S. state is home to the world's longest cave?

Step 1 : Introduction to the question "Which U.S. state is home to the world's longest cave?"

...1. California 2. Kentucky 3. Idaho 4. Vermont

Step 2 : Answer to the question "Which U.S. state is home to the world's longest cave?"

Kentucky - Part of the Green River Valley in Kentucky, Mammoth Cave National Park’s namesake is the longest known cave system in the world, with more than 400 miles fully explored. The official name of the system has been the Mammoth–Flint Ridge Cave System, since it is unified with another system of caves, Flint Ridge, to the north. The park that the cave is located in became a World Heritage Site in 1981 and an international Biosphere Reserve in 1990, so visitors can explore the protected land for decades to come.:

Please let us know as comment, if the answer is not correct!

Step 3 : Disclaimer & Terms of Use regarding the question "Which U.S. state is home to the world's longest cave?"

Our machine learning tool trying its best to find the relevant answer to your question. Now its your turn, "The more we share The more we have". Share our work with whom you care, along with your comment ...Kindly check our comments section, Sometimes our tool may wrong but not our users.

Are We Wrong To Think We're Right? Then Give Right Answer Below As Comment