Santa Fe's 26th Annual Century Ride.
A hundred miles of history pass under your wheels as you bicycle down the ancient Turquoise Trail through the old mining towns of Madrid and Golden, across the mineral rich Ortiz and San Pedro Mountains, across the Estancia Valley through the villages of Cedar Grove and Stanley and on to the very old village of Galisteo, and 100 miles after you start, wheel back into Old Santa Fe. In addition, there is a Half-Century loop and 25, 50, & 75 mile "out & back" routes.
http://www.santafecentury.com/