Guyana the dryer savannah areas in the south-west; and the smallest interior lowlands (interior savannah) consisting mostly of mountains that gradually rise to the Brazilian border. Some of Guyana's highest mountains are Mount Ayanganna (), Monte Caburaí () and Mount Roraima ( – the highest mountain in Guyana) on the Brazil-Guyana-Venezuela tripoint border, part of the Pakaraima range. Mount Roraima and Guyana's table-top mountains (tepuis) are said to have been the inspiration for Sir Arthur Conan Doyle's 1912 novel "The Lost World". There are also many volcanic escarpments and waterfalls, including Kaieteur Falls which is believed to be the largest water
South Sioux Falls, South Dakota Falls incorporated by a 63-0 vote. Pettigrew wanted to build a suburb of Sioux Falls to the south and west. Once nearly covering , South Sioux Falls once boasted a woolen mill, soap factory, an axle grease factory, a six story factory plant and Sioux Falls' first airport Soo Skyways. City hall was located at the corner of 41st Street and Covell Avenue. In the 1950 census the city was estimated to have a population of nearly 1,600, making it the third largest city in the county after Sioux Falls and Dell Rapids. On October 18, 1955 South Sioux Falls