Throughout the book Boll and his colleagues continuously stress the significance of the many important contributions that psychology has made to medical science's knowledge and understanding of the causes and consequences of physical and emotional illness.
There are more than 60 dams in the Columbia River watershed in the United States and Canada. Tributaries of the Columbia River and their dammed tributaries, as well as the main stem itself, each have their own list below. The dams are listed in the order as they are found from source to terminus.
Libby Dam was completed in 1972 as a joint project between the United States and Canada in an effort to provide flood protection and to generate hydroelectric power. The Kootenai River fluctuated wildly in the spring causing flooding in Montana, Idaho and British Columbia, costing millions of dollars in flood damage.