: The range's highest point, rising dramatically from the Rio Grande Valley. It is known for its steep, off-trail terrain and isolation.
: The range contains thick sections of Pennsylvanian-age rocks (roughly 300 million years old), including the Sandia, Gray Mesa, and Atrasado formations. Ladrones
"Islas de los Ladrones" (Islands of Thieves) was the original Spanish name given to the , including Guam . : The range's highest point, rising dramatically from
: Named by Ferdinand Magellan in 1521 after a cultural misunderstanding regarding the ownership and exchange of goods between his crew and the native Chamorro people. : The range's highest point