The terrain of the County varies from an elevation of 1,900 feet at its desert low to just under 8,000 feet on its mountain peaks. The diverse terrain includes grasslands, picturesque rock formations, high desert streams and mountain valleys. The major vegetation types in the County are grasslands, pinion-juniper, chaparral, desert grassland and desert scrub.
The climate varies from Sonora Desert in the lower elevations to mid-Canada at the higher elevations. The temperature variations from day-time high to night-time low throughout the year is about 35 degrees.
The County lies in the center of a 100-mile strip of Ponderosa pine forests which crosses the state from the northwest corner to the eastern boundary. The Prescott National Forest, as well as portions of the Coconino and Tonto National Forests, are within the County boundaries.