Complex sentence: Ellisons features a number of underground vertical pitches including the two tallest pits east of the Mississippi in Fantastic (586 feet) and Incredible (440 feet), however these two pits lay on opposite sides of the cave.
Split into simpler sentences: Ellisons features a number of underground vertical pitches including the two tallest pits east of the Mississippi in Fantastic (586 feet) and Incredible (440 feet). These two pits lay on opposite sides of the cave.