Sampling Locations in Upper Mississippi River Basin

Map of watersheds and sampling sites of the Upper Mississippi River Basin

Detailed Description

Figure 1a. Upper Mississippi River Basin major tributary watersheds and sampling locations for 2015-17 study. Yellow dots mark mainstem Mississippi River, major tributary, and Chippewa River basin sampling sites that were visited quarterly during 2015-17; black dots and red dots mark targeted sampling sites visited one time during 2015-17. Creator: Sydney Foks, USGS, 2017. 


Image Dimensions: 1323 x 1126

Date Taken:

Location Taken: US


Map created by Sydney Foks, USGS 2017.