Complex sentence: This major north south highway and railroad, between Ciudad Juarez and the city of Chihuahua crosses through the dune area, and the highest parts of the dune fields are visible in the distance from Federal Highway 45.
Split into simpler sentences: This major north south highway and railroad, between Ciudad Juarez and the city of Chihuahua crosses through the dune area. Parts of the dune fields are visible in the distance from Federal Highway 45.