Location: Northern Arizona, USA. The park encompasses 1,904 sq mi (4,930 km²).
Central Feature: The Grand Canyon, carved by the Colorado River over 5–6 million years (exposed rock up to 1.8 billion years old).
Surrounding Landscapes:
Activities: Hiking, camping, rafting, mule rides, scenic drives, ranger programs, stargazing (International Dark Sky Park).
The park is a geologic textbook, ecological transition zone, and cultural landscape of global significance.