The City of Rocks National
Reserve, also known as the Silent
City of Rocks, is a United States National Reserve
and state
park lying
2 miles north of the south central Idaho border
with Utah.
It is widely known for its excellent rock
climbing and rock
formations. The rock
spires in
the City of Rocks and adjacent Castle
Rocks State Park are
largely composed of granite rock of the Oligocene Almo
pluton and Archean Green
Creek Complex.
The City of Rocks is a popular rock
climbing area,
with over 1,000
traditional
and bolt-protected routes. In the 1980s, it was home to some of
the most difficult routes in the USA, mostly developed by Idaho climber Tony
Yaniro.
Climbers in the region refer to the area
as simply 'The City'.
California Trail wagon
trains of the 1840s and 1850s left the Raft
River valley
and traveled through the area and over Granite
Pass into Nevada.
Names or initials of emigrants written in axle grease are
still visible on Register
Rock. Ruts from wagon wheels also can
be seen in some of the rocks. |