Oregon Coast Range

Oregon Coast Range
Coast Range
The Northern Coast Range, seen from Saddle Mountain in Clatsop County
Highest point
Peak	Marys Peak
Elevation	4,101 ft (1,250 m)
Coordinates	44°30′16″N 123°33′10″W / 44.50444°N 123.55278°W / 44.50444; -123.55278
Dimensions
Length	200 mi (320 km) North–South
Geography
Country	United States
State	Oregon
Subdivisions	Northern Oregon Coast Range, Central Oregon Coast Range and Southern Oregon Coast Range
Parent range	Pacific Coast Ranges
Borders on	Willamette Valley and Klamath Mountains (California Coast Ranges)
Geology
Rock age(s)	Paleocene and Eocene
Rock type(s)	volcanic and forearc basin

The Oregon Coast Range, often called simply the Coast Range and sometimes the Pacific Coast Range, is a mountain range, in the Pacific Coast Ranges physiographic region, in the U.S. state of Oregon along the Pacific Ocean. This north-south running range extends over 200 miles (320 km) from the Columbia River in the north on the border of Oregon and Washington, south to the middle fork of the Coquille River. It is 30 to 60 miles (48 to 97 km) wide and averages around 1,500 feet (460 m) in elevation above sea level. The coast range has three main sections, a Northern, Central, and Southern.

The oldest portions of the range are over 60 million years old, with volcanics and a forearc basin as the primary mountain building processes responsible for the range. It is part of the larger grouping known as the Pacific Coast Ranges that extends over much of the western edge of North America from California to Alaska. The range creates a rain shadow effect for the Willamette Valley that lies to the east of the mountains, creating a more stable climate and significantly less rain than the coastal region of the state. To the west where the range over-shadows the Oregon Coast, the range causes more precipitation to fall on that side of the mountains, contributing to the numerous rivers that flow to the Pacific Ocean.

Marys Peak in the Central Coast Range is the highest peak at 4,097 feet (1,248 m). Logging is a major industry in the range in both private and government owned forests. Both the state and federal government manage forests in the Oregon Coast Range. The mountains are home to a variety of wildlife including black bear, elk, deer, beaver, many species of birds, and bats among others. Fish, including salmon and trout, and other aquatic life inhabit the streams and rivers flowing through the range.