Scope and Contents Mexican Hat Expeditions leads a river trip down the Colorado River from Lees Ferry, Arizona to Lake Mead. Mileage in the following shot list is given as per United States Geological Survey (USGS) practice in miles downstream from Lees Ferry. "Left" and "right" always refer to the view downstream. The large, pre-dam beaches visible in the film are no longer in evidence along the modern Colorado River. Shot list: ...