Page 515
drainage in North Dakota is about 10,000 years old; some of the early routes of the "Missouri River" may have lasted much longer than that. Even though the glaciers that covered North Dakota at various times during the Pleistocene Epoch flowed in various directions, evidence to document th...
| Language: | unknown |
|---|---|
| Subjects: | |
| Online Access: | http://cdm16921.contentdm.oclc.org/cdm/ref/collection/ndbb/id/8769 |