Atlas of the United States: Oregon

Oregon is located north of California, bordered by Nevada, Idaho, and Washington. It is known for its Pacific coastline and the Cascade Mountains, which divide the state into a lush, rainy west and a dry, sparsely populated east. The Cascades are home to inactive volcanoes and Crater Lake, the deepest lake in the U.S. Portland, Oregon's largest city, is a hub for manufacturing and technology. The Columbia River forms a scenic gorge east of Portland. The Willamette Valley, south of Portland, is a key agricultural area producing various crops, including hazelnuts.

Which state lies directly to the north of Oregon?

• Washington

• Nevada

• California

• Idaho

What type of climate is found in Eastern Oregon?

• Tropical

• Dry continental

• Mediterranean

• Humid subtropical

How was Crater Lake in Oregon formed?

• By river erosion

• By volcanic eruption

• By glacial activity

• By a meteor impact

What is the primary agricultural area south of Portland?

• Cascade Range

• Willamette Valley

• Columbia River Gorge

• Coast Range

Which river forms most of the border between Oregon and Washington?

• Willamette River

• Snake River

• Deschutes River

• Columbia River