The lower part of the Mil Rios trail runs from Tlalixtac some two or more miles up into a mountain valley. Its close proximity to the city makes it a fine place for a Sunday excursion, whether aboard a mountain bike, on horseback or simply hiking. The stream coming down the mountain feeds a series of small reservoirs behind four dams that divert water into an aqueduct providing irrigation to farm fields in the valley. The trail crosses the stream in several places, but there was not a drop of water in the creek at this late date in the dry season. Our group of riders racked up 37 kilometers (23 miles) on this out & back ride, climbing and descending a total of 335 meters (1099 feet) along the way. Ride time was 3.5 hours.