We are people who enjoy running the trails near Boulder, Colorado.
Our website is: http://bouldertrailrunners.org
However, this Yahoo Group List is the primary method of communication; the website and its forums are mostly for ongoing information or commercial listings which are not allowed on this List.
There are group runs Tue at 5:30 PM, Wednesday at 5:30 AM and 5:30 PM, Thursday at 5:30 PM, a Night Run which could be Mon, Tue, or Wed, usually at 8:30 PM, and often a Friday lunch run. Weekend runs are intermittent. All locations are different each week and are always announced on this List (not the website) the day prior, which means they will automatically be sent to your email.