PRESENTATION OUTLINE
MOUNTAIN RANGE LOCATED ACROSS WASHINGTON ,OREGON,TO CALIFORNIA
The United States Plate and Juan de Fuca Plate boundary is convergent
Juan de Fuca plate is an oceanic plate and it is less dence so it goes underneath the North American plate creating a trench the North American plate is being pushed up also creating the mountain range.
↓JUAN DE FUCA PLATE↓ ↓NORTH AMERICAN PLATE↓