Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 76. Chapters: List of bridges in Denmark by length, List of countries by length of coastline, List of largest cable-stayed bridges, List of longest arch bridge spans, List of longest bridges above water in India, List of longest bridges in the world, List of longest buildings in the world, List of longest cantilever bridges, List of longest continuous truss bridge spans, List of longest films by running time, List of longest natural arches, List of longest rivers in the United States by state, List of longest rivers of Canada, List of longest rivers of the United States (by main stem), List of longest streams of Oregon, List of longest suspension bridge spans, List of longest tunnels in the world, List of long tunnels by type, List of motor yachts by length, List of rail tunnels in India by length, List of rivers by length, List of rivers of New Zealand by length, Orders of magnitude (length). Excerpt: Seventy-seven rivers and creeks of at least 50 miles (80 km) in total length are the longest streams of the U.S. state of Oregon. All of these streams originate in the United States except the longest, the Columbia, which begins in the Canadian province of British Columbia and flows 1,249 miles (2,010 km) to the sea near Astoria. The second-longest, the Snake River, which at 1,048 miles (1,687 km) is the only other stream of more than 1,000 miles (1,600 km) on the list, begins in Wyoming and flows through parts of Idaho and Washington, as well as Oregon. Some of the other streams also cross borders between Oregon and California, Nevada, Idaho, or Washington, but the majority flow entirely within Oregon. The Atlas of Oregon ranks 31 rivers in the state by average streamflow; the top five are the Columbia, Snake, Willamette, Santiam, and Umpqua. Not all Oregon rivers with high average flows are on this list of longest streams...