In the 1860s, there were two United States Army posts in south central Oregon named after Warner. Both were called Camp Warner. Old Camp Warner was located on the east slope of Hart Mountain. After a difficult winter, the army moved the post to a new location near Honey Creek, on the west side of the Warner Valley. That outpost became known as Camp Warner. The army abandoned Camp Warner in September 1874. From 1889 until 1924, there was also a post office near the small unincorporated community of Adel, Oregon, that was named after Warner.