Mount Graham is a high mountain pass at an elevation of 3.269m (10,724ft) above the sea level, located in southeastern Arizona in the United States. It's one of the highest mountain roads of Arizona.
Located in Graham County, the road to the summit, the highest point in the Pinaleno Mountains, is called Mt Graham International Observatory Road. It’s gravel and pretty steep. The last part of the road is gated between November 15 and April 15. Open to all motorized vehicles, however, strongly recommended for high clearance, 4-wheel drive vehicles. Near the summit there’s a observatory called Mount Graham International Observatory. It was built in 1993. Do not travel this road in severe weather conditions. Avalanches, heavy snowfalls and landslides can occur anytime, being extremely dangerous due to frequent patches of ice.