2  EPA Ecoregions

For some geological classification that isn’t based on watershed boundaries, we turn to the EPA’s Ecoregions.

2.1 Level 3 Ecoregions

Figure 2.1: Level 3 Ecoregions in Louisiana, Mississippi, and Alabama; the Mississippi Sound Watershed is outlined in black.

The Mississippi Sound Watershed contains 4 level-3 ecoregions:

• 65 Southeastern Plains
  
• 73 Mississippi Alluvial Plain (in the very southwest corner)
  
• 74 Mississippi Valley Loess Plains
  
• 75 Southern Coastal Plain

Figure 2.2: Level 3 Ecoregions in the Mississippi Sound Watershed only.

2.2 Level 4 Ecoregions

Figure 2.3: Level 4 Ecoregions in the Mississippi Sound Watershed.

About

The .qmd file that generated this section was: EPA_Ecoregions.qmd.

For information on data processing, see Appendix A.1.2.