History of South Dakota

（原始内容存档于2024-06-13）.  A History Of Custer County. Custer County, SD. [2024-05-31]. （原始内容存档于2024-07-05）.  Welcome to Day County, South Dakota!. Day County, SD

ˈfɔːlz/；拉科塔语：Íŋyaŋ Okábleča Otȟúŋwahe，意为“碎石城”）是美国南达科他州人口最多的城市（英语：List of cities in South Dakota），在全美城市中排名第139位。它是明尼哈哈县的县治，并向南延伸至林肯县，与爱荷华州边界相邻。截至2020年，苏瀑的人口估计为195

（原始内容存档于2006-02-08）.  Federal Writers' Project. South Dakota place-names, v.1-3. University of South Dakota. 1940: 50 [2021-12-02]. （原始内容存档于2021-12-02）. 

Find a county. National Association of Counties. [2012-02-24]. （原始内容存档于2007-10-25）.  History and Facts of South Dakota Counties. mycounties.com. [2024-06-04]

South Dakota. Peakbagger.com. [2008-12-29].  James R. Macdonald, Ph.D. Museum of Geology: History. Rapid City, South Dakota: South Dakota School of Mines