The body was found by a Lewis Morris Park patron in the Sugarloaf section of the park around 2:45 p.m., Sunday, Morris County Park Police Lt. Chris List said.
The park was briefly closed and has since reopened, List said.
"The Morris County Prosecutor’s Office ordinarily does not issue public statements on active investigation," Prosecutor Fredric M. Knapp said. "However, given the fact that unsubstantiated statements have circulated on social media, there exists a need to provide more information to the public at this time.
"There is no cause to believe there is any criminality involved."
The Morris County Prosecutor’s Office Major Crimes Unit, Morris County Park Police, Morris County Sheriff’s Office CSI and Morris County Medical Examiner’s Office were investigating.
Lewis Morris County Park in Morristown spans 22.1 miles of trails across more than 2,100 acres.
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