I got a comment from Sandra that she had recently moved into Markham and needed some suggestions about how to get around the heinous crossing of 16th and Highway 404. Here goes
Highway crossings are always tricky, but here is one method that works pretty well for me. It does requrie some sidewalk riding and a little walking. Use at your own risk.
From the east: take the sidewalk on the south side of 16th and go under the first bridge. The sidewalk ends under the second bridge where it becomes a narrow dirt trail. Follow the little dirt trail on to the triangular piece of gravel between 16th and the 404 on ramp. Wait for a gap in traffic and cross the ramp. You’ll find another dirt trail that you can use to access the parking lot on Leek Crescent. Take Leek Crescent over the Mural Street and head North. You can get back on 16th from the light there. See the photo below or the Gmaps Pedometer Route.


Wow – I won’t ever complain again about the cycling in my neighbourhood. That sounds horrendous!
I have a potential client at 7 and Leslie so I may well be sharing some of that Markham cycling pain soon, either that or reacquainting myself with the 25D and 90 Leslie bus routes…
DarrenJ is the guru for getting to Leslie & 7 from South of Yonge & 401. He also writes on the ibiketo.ca website.
See in particular his post from a couple of years ago “How-to: Yonge St and Hwy 401 by bike” for getting around the mess. I’ve ridden the route with Darren and it works great.
Once past Yonge/401, You can use streets like Willowdale Ave., Maxome, and Henderson to connect to John St. or Green Lane in Markham. You can’t totally avoid Leslie, but it makes the ride much more enjoyable.