- Take I-475 from I-75 to the Secor Road exit.
- Go south on Secor
(Left from westbound 475, right from eastbound).
- When you get to
Bancroft St. turn left.
- At the second stop light you should see the
observatory on the right, Cheltenham Rd. to the left.
- Go straight
through this light and get all the way over to the right.
- The next
is the entrace to campus, turn right into campus. At the first parking
lot (1N on the map) turn right into it. The north most building (the one
with the smaller dome) is McMaster. Campus Map Mcmaster
is labled MH on the map. RO is the Ritter Observatory.