I Have a map i created for those who live in the Northwest Baltimore City/County areas that ride through Upper Park Heights, Mt. Washington, Pikesville, Stevenson. I have one Ride that is a Great Summer Saturday AM ride for folks that has plenty of places to stop and regroup, starts and ends at the Metro, and has plenty of secure off street parking. Great for a group of 10 folks to ride with no problem. I would suggest that the rider should be able to keep a pace of about 10-12mph in order to complete in a 2.5 to 3 hour time frame.
8.11 Mile to 10.07 Mile 2.7% Grade
14.77 Mile to 15.49 Mile 2.4% Grade
At the 8Mile there is a stop to regroup and get water
At Mile 16.5ish there is A Place for stopping and a regroup. Refreshments are available at the Walgreens, Whole Foods, and other stuff there.