• The South Mountains comprise three mountain ranges: the
Guadalupe Range,
Gila Range and
Ma Ha Tuak Range. •
Gila Valley Lookout is the highest point accessible by trail at 2,620 ft (800 m). •
Alta Ridge is the ridge on the eastern end of Maricopa peak. •
Telegraph Pass is a gap that separates the
Guadalupe Range to the east and the
Gila Range to the west. • ''Fat Man's Pass
, formerly known as Wonder Rift
, and Natural Tunnel
are rock formations that provide access to Hidden Valley Trail''. •
Mystery Castle is in the foothills on the north side and was built from odd materials and trash around 1930 as a private residence. • There are more than 30 communications towers on the summit of
Mount Suppoa. • There are
ruins of both
ancient Indian and
more contemporary origin, and there are many
petroglyphs carved into the
desert varnish on the rocks. ==Geography and ecology==