Human remains found earlier this month on Adak Island are believed to be those of a man missing for more than five years, according to Alaska State Troopers.

In a Friday AST dispatch, troopers say personal effects found near the site suggest that the remains are those of 57-year-old Samuel Dee Arrington.

“On (June 18) AST was notified by Adak Police Department that two federal (U.S. Fish and Wildlife Service) employees found human remains on Adak Island about 1.34 miles west of Lake Betty, which is about 15 miles southwest of the town of Adak,” troopers wrote.

An Aug. 7, 2008 missing-persons bulletin for Arrington (PDF) says he was last seen on July 15 of that year at the head of a trail to Lake Betty, five days after flying to Adak on a one-way Alaska Airlines ticket and buying camping supplies.

“A staging area was located on the north side of Lake Betty and a campsite was located toward the south side of Lake Betty,” troopers wrote in the bulletin. “Both belonged to Arrington and appeared to be abandoned.”

AST spokesperson Beth Ipsen says the body was located in an inland area with streams.

“The remains were found in a ravine,” Ipsen said. “The (USFWS employees) were out doing bird studies.”

While troopers have limited information from the scene, Ipsen says there’s still much to be learned.

“Right now he hasn’t been positively identified, and we don’t have a cause of death, but foul play isn’t suspected,” Ipsen said.

Ipsen says the remains have already been checked by the state medical examiner's office but will be sent to the Lower 48 for further examination, with an investigation continuing.