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The colorful red B-Cycles can be seen all over town. They are the centerpiece of the country's first large-scale bike-sharing system.

B-Cycle made its debut on Earth Day 2010, bringing 400 bikes to 40 docking stations in Denver.Withina month of that debut, more than 3,000 people had used the system. B-cycle now lets users check out bikes with credit cards and monitor real-time availability on iPhones.

During the first B-Cycle season the program logged 102,981 rides totaling 211,111 miles around Denver.

Learn more about how to take part in the Denver B-Cycle program by visiting:

http://www.denverbikesharing.org/index.php