Sioux Falls
The D&I crosses over the magnificent Sioux Falls on a girder bridge built by the Great Northern in 1919. The rock foundations you see here are made of Sioux quartzite, a type of rock native to the three corners of South Dakota, Minnesota, and Iowa. Significant quartzite mining took place around the falls in the 19th Century. The D&I continues to be a major shipper of quartzite from the LG Everist quarries in Dell Rapids.
Sioux Falls
The D&I crosses over the magnificent Sioux Falls on a girder bridge built by the Great Northern in 1919. The rock foundations you see here are made of Sioux quartzite, a type of rock native to the three corners of South Dakota, Minnesota, and Iowa. Significant quartzite mining took place around the falls in the 19th Century. The D&I continues to be a major shipper of quartzite from the LG Everist quarries in Dell Rapids.