flood-control irrigation
81Yu the Great — Yu the Great, Color on silk at the National Palace Museum Chinese 大禹 …
82Thailand — /tuy land , leuhnd/, n. 1. Formerly, Siam. a kingdom in SE Asia: official name of Siam 1939 45 and since 1949. 59,450,818; 198,242 sq. mi. (513,445 sq. km). Cap.: Bangkok. 2. Gulf of. Also called Gulf of Siam. an arm of the South China Sea, S of… …
83Portland District, U.S. Army Corps of Engineers — Active 1871 – present Country United States …
84Infrastructure — Public infrastructure Assets and facilities Airports · Bridges · Broadband …
85Kura River — See Kura for other rivers called Kura. Coordinates: 39°19′32″N 49°20′07″E / 39.32556°N 49.33528°E / 39.32556; 49.33528 …
86Oroville Dam — View of Oroville Dam from the air. The main dam is to the right and the spillway is to the left; the Thermalito Diversion Pool is in the midground Location Butte County, California Coordinates …
87Yangtze River — Chinese Chang Jiang or Ch ang Chiang River, China. Rising in the eastern Kunlun Mountains in western China, it flows southeast, continuing east across Yunnan province and then across the rest of south central China to the East China Sea near… …
88Yangtze River — Coordinates: 31°23′37″N 121°58′59″E / 31.39361°N 121.98306°E / 31.39361; 121.98306 …
89History of agriculture in the People's Republic of China — For over 4,000 years, China has been a nation of farmers. By the time the People s Republic of China was established in 1949, virtually all arable land was under cultivation; irrigation and drainage systems constructed centuries earlier and… …
90Climate change in Washington — Main article: Climate change in the United States Digitally colored elevation map of Washington. Climate change in the American state of Washington is a subject of study and projection today. Contents …
