[4] Most of the water which falls on the massif flows into the Dosewallips River which drains, by way of the Hood Canal, into Puget Sound.

[5] Mount Anderson was named by army Lieutenant Joseph O'Neil for his commanding officer, Thomas M.

[7] Mount Anderson is located in the marine west coast climate zone of western North America.

As fronts approach, they are forced upward by the peaks of the Olympic Range, causing them to drop their moisture in the form of rain or snowfall (Orographic lift).

[9] The mountains were sculpted during the Pleistocene era by erosion and glaciers advancing and retreating multiple times.