This expansion contains a new game board. It shows the area around Colorado with new bridge spaces and production sites.

The rivers flow through deep canyons and therefore make the route from east to west more difficult. If you build bridges on your dams, you create easier routes to the production sites. However, you can no longer build elevations on dams with bridges. So think carefully about when to build bridges!
Production sites are new action spaces (4 in the mountains, 3 in the hills, 3 in the foothills) on which you can place workers to activate them. This costs different amounts of hydros, depending on whether you have bridges available on the way there or have to cross the deep valleys of the canyons.

You can use this expansion in games with 2 to 4 players and combine it with the expansion The Leeghwater Project.