Pierre Rapid City Sioux Falls Huron
Interstate 10 Interstate 40 Interstate 20 Interstate 5
Lake Sakakawea Lake Francis Lake Oahe Lake Sharpe
Appalachian Hills Black Hills White Hills Red Hills
Spearfish Edgemont Deadwood Hot Springs
Wind Cave Optmisticeskaja Cave Jewel Cave Mammoth Cave
Big Sioux River Missouri River Cheyenne River James River
Prairie State Mount Rushmore State Hawkeye State First State
Badlands NP Jewel Cave National Monument Mount Rushmore Wind Cave NP
770 000 17.7 million 7.7 million 1.77 million