To get to Marcum Conference Center (programs, name tags, parking passes, maps, and other info will be in the lobby Thurs night and Friday morning), follow the directions at their web site: Getting to Marcum. Some other information for directions to Oxford can be found at Miami University's Getting Here Page. Cincinnati International Airport is the closest and most accessible airport. In addition to renting a car at the airport, other means of transportation can be found at the Visiting Miami, transportation page.
For those staying at Tappan Hall dorm, you can check in there when you arrive. To check-in the dorms, go
inside Tappan Hall (main entrance on east side, facing U.S. 27) to the check-in desk.
This desk is staffed 24 hours. The attendant will have the roster and keys and will direct you to your assigned
room. Some parking passes may be available there but these will certainly be at Marcum Thursday evening and Friday.
Directions to Miami University from Airports
Here are Yahoo maps with directions: