Office: Walker Building, Room 316

Office phone: 865-2612

E-mail: mark@geog.psu.edu

Office hours: (Rm. 316)

Teaching Assistant: Todd Heibel

Office: Walker Building, Room 335

Office Phone: 863-1825 or 865-3433

Email: tdh147@psu.edu

Office Hours: Wednesday 5:00 - 6:00 pm and Thursday 4:00 - 5:00 pm IN LAB (229 Walker)