A terrific – if challenging – 16.4 mile (26 kms) ride on steep mountain roads in the hills west of the cuota to Mexico City northwest of Huitzo. Turn off on a spur road 15.5 kms northwest of the Huitzo toll booth, just beyond the overpass at kilometer 207. Map below shows route one way (the return leg), so double the distance for the round trip ride. The total climb going both ways amounts to 935 meters (3067 feet). The initial hill climb has a gradient between 10% and 16%, which will strain your leg muscles. The highest point on the route is 2313 meters (7588 feet). There is a pleasant comedor at the highway junction which provides a perfect place to stop for rest and refreshments at the end of the adventure.