Topography
The city is split by the prominent Arkansas River, which flows in a wide, sandy-bottomed channel. Its flow through the Tulsa area is controlled by upstream flood control reservoirs, but its width and depth can vary widely throughout the year, such as during periods of high rainfall or severe drought. However, a low-water dam maintains a full channel at all times in the area adjacent to downtown Tulsa. Heavily wooded and with abundant parks and water areas, the city holds several prominent hills with names such as "Shadow Mountain" and "Turkey Mountain," which create varied terrain, especially in its southern portions. While its central and northern sections are generally flat to gently undulating, the Osage Hills extension into the northwestern part of the city further varies the landscape. Holmes Peak, the future site of The American monument in the northwest corner of the city, is the tallest point in five counties at 1030 ft (314 m). According to the United States Census Bureau, the city has a total area of 483.9 square kilometers (186.8 mi²). 473.1 square kilometers (182.6 mi²) of it is land and 10.9 square kilometers (4.2 mi²) of it (2.24%) is water.
(Source: Wikipedia.org)
