Coos Bay

Coos Bay is an S-shaped inlet where the Coos River enters the Pacific Ocean, approximately 10 miles (16 km) long and two miles (three km) wide, on the Pacific Ocean coast of southwestern Oregon in the United States. The estuary is situated south of the Salmon River. The city of Coos Bay, once named Marshfield, was renamed for the bay and is located on its inner side. The Port of Coos Bay is the largest and deepest port between San Francisco, California and the Columbia River.

Coos Bay is located in northern Coos County. Other communities on the bay include North Bend and Charleston. Many of the fishing and pleasure boats that call Coos Bay home are docked in Charleston.

Coos Bay is the proposed site of a liquefied natural gas (LNG) terminal by Jordan Cove Energy Project. The terminal would supply liquified natural gas primarily to the California market through the proposed 36-inch-diameter (910 mm) Pacific Connector Gas Pipeline which would extend 234 miles from Jordan Cove on Coos Bay to Malin, near Klamath Falls. The terminal and pipeline projects are under regulatory review. Oregon Governor Kulongoski expressed various environmental concerns.