| Poston Butte | |
| Elevation Ft: | 1749 |
| Elevation Ref: | [1] |
| Prominence Ft: | 223 |
| Prominence Ref: | [2] |
| Location: | Pinal County, Arizona, U.S. |
| Map: | Arizona#USA |
| Map Size: | 180 |
| Label Position: | bottom |
| Coordinates: | 33.0552°N -111.4089°W |
| Topo: | USGS Florence |
Poston Butte, formerly called Primrose Hill, is a hill located along Hunt Highway in Florence, Pinal County, Arizona, United States,[3] near the eastern end of the Santan Mountains.[4] Geologically, it is characterized by basalts overlying altered granite.[5]
This hill is noted for having the pyramidal tomb of Charles Debrille Poston at its summit. Poston lobbied President Lincoln and Congress to create the Territory of Arizona[6] and was appointed Superintendent of Indian Affairs because of his familiarity with the Native populations of the area.[7] The tomb can be accessed by a 0.6miles trail starting from the trailhead near Hunt Highway.[8]