Steem trail token is a reward token given to authors. It's a reward in addition to the votes of the steemtrail community. The TRAIL token can be traded on openledger. But the main goal is to bring together authors from steemit and give them the opportunity to have better visibility on the steemit platform. The link above will bring you to the steemtrail discord, where you can find all the information you need, and speak with people involved.