Terrain & Climate

The Dungeness River System : The Dungeness River, one of the steepest rivers in the United States, cascades over 7,800 feet in only 35 miles, providing essential water, riparian habitat and beautiful scenery for the Sequim-Dungeness Valley.

• Taking Care of the Dungeness (PDF) : Our river is central to the culture and life of our area, please take time to read this helpful brochure on how to care for it!
• Main Habitats in The Dungeness Watershed
• Dungeness River Flow Data - Current Conditions
• Seasonal and Annual Flows of the Dungeness River :The period October to December typically has rainstorms and snow, whereas the period January to March has snowpack accumulation with fewer storms.

Weather and climate of the Rainshadow

• Rainshadow Effect

Geology of the north Olympic Peninsula : This is interesting and unusual territory, only beginning to be understood in the light of the plate tectonics research of the last half of the 1900s.  The Olympic Peninsula is a ‘young’ addition to the west coast of North America, with oldest rocks dating back only about 50 million years.