Craters of the Moon National Monument is located in central Idaho, near the town of Arco. It is a protected area and was once the site of a volcanic eruption. It was because of sheer curiosity that craters of the moon became known. Federal geologists explored the place in 1901 and again in 1923. Also in the 1920s a taxidermist and part-time explorer, Robert Limbert, made three trips to the area. His findings drew national attention to the fascinating volcanic formations here and contributed to providing the necessity of protecting the region. In 1924, President Calvin Coolidge officially established Craters of the Moon National Monument. Read more