 Heavily wooded and with abundant parks and water areas , the city has several prominent hills , 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 , north of the city , is the tallest point in the Tulsa Metro area at 1360 ft ( 415 m ) According to the United States Census Bureau , the city has a total area of 186 @.@ 8 square miles ( 484 km2 ) , of which 182 @.@ 6 square miles ( 473 km2 ) of it is land and 4 @.@ 2 square miles ( 11 km2 ) of it ( 2 @.@ 24 % ) is water . 
