Officers are investigating the possibility a man missing since the end of April crashed near Oxbow Reservoir near Foresthill.
A person reported a motorcycle crash near the reservoir Thursday morning. Initial reports indicate the motorcyclist died in the crash.
Investigators believe the motorcycle found near Oxbow Reservoir belongs to Alan Porter.
Porter was last seen April 29 as he drove his motorcycle away from his Sacramento home.
There is no official confirmation Porter is the motorcyclist who died.