Located on the northeast slopes of the White Mountains, is set against a national forest of ponderosa pines. Its history dates to the late 1800s when John Thomas Eagar, his brothers Joel and William, and the Robertson family homesteaded in Round Valley. 
    In 1888, the town, 221 miles northeast of Phoenix at an elevation of 7,000 feet, was established under the name Union of unify the small settlement in the area. The name was changed to Eagar in 1892, the Post Office was established in 1888, and the town incorporated in 1948. Eagar is on U.S. 180, the direct link between I-40 and I-10, at its junction with U.S. 60.