Complex sentence: Marble, North Carolina is the site of high quality of white, gray, pink and blue marble which was discovered almost immediately after the removal of the Cherokee in 1838-1839 and has been quarried intermittently ever since.
Split into simpler sentences: Marble, North Carolina is the site of high-quality white, gray, pink and blue marble. It has been known since the removal of the Cherokee in 1838-1839 and has been quarried intermittently ever since.