Sentinel is an unincorporated community in Maricopa County, Arizona, United States.

[2] It has an estimated elevation of 692 feet (211 m) above sea level.

[1] The train station served the US Army training camps: Camp Horn and Camp Hyder during World War II.

[3] Some of the late 19th Century ruins in Sentinel.

Arizona portal Media related to Sentinel, Arizona at Wikimedia Commons