Lone Butte is a low, steep-sided mesa butte or volcanic plug in southern British Columbia, Canada, located on the southern Cariboo Plateau to the southeast of 100 Mile House. It is composed of columnar basalt that formed within a prehistoric volcano six million years ago. It is part of the geological formation known as the Chilcotin Group, which lies in between the Pacific Ranges of the Coast Mountains and the mid-Fraser River. BCWireless Ltd uses Lone Butte as one of its main access point for Broadband Internet distribution.