The links below give you directions to the campus, a PDF map of the campus that includes parking locations, and let you know about cancellations and delays on campus due to weather or other emergencies.
Directions:
http://osumarion.osu.edu/directions
PDF Map of the Marion Campus:
http://osumarion.osu.edu/files/u2/osum_map.pdf
Delays and Cancellations:
http://osumarion.osu.edu/closing_delays_direc