Hikers were exploring near an abandoned Colorado mine on Friday (October 2), when they stumbled across human remains.

According to Denver7, police believe the remains had been been in the area for a fairly long time.

The Saguache County Sheriff's Office has called in the Colorado Bureau of Investigation (CBI) to look into the case.

However, authorities say the discovery is not related to the disappearance of missing Chaffee County woman Suzanne Morphew.

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