Making a valley floor

My layout features a rather large valley running through one area which has very little access for doing landscaping. I therefore decided to make the upper valley floor as a separate section that could be landscaped and then moved into place when mostly done.

This hole in the layout is what had to be filled with the valley section.

Making a river with waterfalls

Having completed the valley sides, it was time to add the stream and waterfalls.

There are two streams, one small one that comes from a small spring and catchment area and then tumbles down some cascades before falling into the valley, and the main valley stream which comes from a lake..