Driftless Randonneurs is holding a Dart/Rouleur weekend. The Saturday event is a Dart 120k team ride that you have 8 hours to complete.
See the Driftless Randonneurs website at: https://driftlessrandos.org for more details and registration instructions
The Dart 120 team ride consists of several teams, each with their own route, leaving the start location at the same time, returning 120k later to celebrate with the whole group.