Forgotten Sioux Falls
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| Google books | books.google.com |
|---|---|
| Originally published | 2012 |
| Authors | Eric Renshaw |
| Genres | Biography |
| Date of Reg. | |
| Date of Upd. | |
| ID | 3136164 |
About Forgotten Sioux Falls
The falls of the Big Sioux River were formed 14,000 years ago, at the end of the last ice age, as melting ice eroded a channel down to the bedrock, revealing an abundance of Sioux quartzite. . . .