The decomposed and partially mummified bodies of three people who were recently found at a remote western Colorado campsite were two adult sisters and one woman's 14-year-old son, Gunnison County Coroner Michael Barnes said.

The deceased are Christine Vance, 41; Rebecca Vance, 42, and Rebecca's son, all from Colorado Springs. Two were found in a tent down the road from a campsite in the Gunnison National Forest about nine miles (14.5 kilometers) from Ohio City, Colorado, Gunnison County Coroner Michael Barnes said in an interview Tuesday. Officials have not named the son because he is a minor.

Their bodies showed signs of malnourishment, with two in the tent and one outside. Though a cause of death has yet to be determined while authorities wait for toxicology reports to be processed, the group may have succumbed to starvation, freezing temperatures or carbon monoxide poisoning from trying to make fire to stay warm, Barnes said.