From 270 N: Take 270 N to Exit 22. Take 109 South. Pass Slate Quarry Road. You will see a sign that says "Cathedral Ridge, Old Hundred Road." Take a right onto this road, and Imam Mahdi Education Center will be the second building to your right.

25450 Old Hundred Road
Comus, MD 20842 - 9633
301.874.1631