There are alot of great caves in the US but there is a hot debate over which one is better Mammoth Cave or Carlsbad Caverns.

including the Grand Canyon, but it was at Mammoth Cave that I truly fell in love with national parks. You see, in none of my five previous park visits had I really understood that I was in a national… ...

a variety of cave ecosystems not to be missed. Visit this alternative to the Grand Canyon with stunning views both above & below ground. While the Grand Canyon is the most popular national park in ...

Fifteen years later, when Congress again refused to create a national park, President Theodore Roosevelt stretched the limits of the Antiquities Act and established the Grand Canyon National Monument.

are located on the popular South Rim. Because the Grand Canyon is a national park, be aware that there is an entrance fee. For private vehicles, the fee is $35 per vehicle. You can also enter on ...