Siskiyou County authorities are investigating the circumstances around the death of a baby at a campground. On Thursday morning deputies responded when medical help was called for a baby who stopped breathing at the Twin Arrows Campground south of Siskiyou Lake. A sheriff’s sergeant arrived first and performed CPR on the 7-month-old infant for about 10 minutes until the arrival of EMT’s. The baby was taken to Mercy Mount Shasta, but could not be revived. An investigation revealed that the baby’s mother and a companion had spent the night in a tent, while the infant and a 2-year-old were placed inside a vehicle for the night. When the mother checked on them the next morning the baby was unresponsive. The 2-year-old was taken into protective custody by C.P.S. The infant had no obvious signs of physical abuse, but the sheriff’s department is reviewing the case and considering charges, which could include neglect, child endangerment, or even manslaughter. In the meantime the mother, who’s from Arizona, and her companion, who’s from Texas, have been released.