CITY OF ROCKS /
THE SILENT CITY

CITY OF ROCKS / IDAHO 2017

RESERVE / GEOLOGY
City of Rocks National Reserve spans 14,407 acres in Idaho's Albion Mountains. Granite spires, fins, domes, and monoliths rise from sagebrush above the 28-million-year-old Almo Pluton and Green Creek Complex rocks more than 2.5 billion years old.
HISTORY
Emigrants called the formations “a city of tall spires,” “steeple rocks,” and “the silent city.”

Photographed on foot over multiple trips to the reserve in 2017.

SURFACE SURVEYS /