32°50′29″N 110°42′40″W / 32.841442°N 110.711076°W
Camp Grant was the name used from 1866 to 1872 for the United States military post at the confluence of the San Pedro River and Aravaipa Creek in the Arizona Territory. It is near the site of the Camp Grant massacre.
The post was first constructed in 1860, and between 1860 and 1873, the post was abandoned or destroyed and then rebuilt multiple times, and it was known by a variety of names, starting with Fort Breckinridge in 1860 before becoming Camp Grant in 1866. In 1872 The "old" Camp Grant on the San Pedro River (located in present day Pinal County) was replaced by a "new" Fort Grant at the base of Mount Graham (in present day Graham County). Little evidence of "old" Camp Grant (formerly Fort Breckinridge) is visible today.