PENINSULA, Ohio-- Investigators returnedto the Cuyahoga Valley National Parkto search for any further evidence a day after skeletal human remains and clothing -- now identified as belonging to missing Akron woman Taylor Robinson -- were found off a trail.

Authorities at the Cuyahoga Valley National Park -- between Cleveland and Akron -- say a jawbone and other small bones were found Tuesday.

Related story:ME identifies remains as those of missing Akron woman

Related story: Hikers find jawbone in national park

Mid-afternoon Tuesday, the Summit County Medical Examiner's Office identified the remains as those of Robinson, 19, who went missing May 4.

A park service spokeswoman said hikers first spotted the jawbone, and searchers then found additional human remains, including a partial skull.

Chief Ranger Chris Ryan says it's unclear how long the remains had been there. Ryan told WKYC-TV that rangers and possibly federal investigators would return to the scene Wednesday.