2.2.1 Topography and Drainage
The lower portion of this subwatershed generally east of the city of Hopkins is located within the Mississippi Valley Outwash region, which is typified by gently rolling terraces and bottom lands punctuated by small lakes formed from melted blocks of glacial ice. The upper portion of this subwatershed is located within the Emmons-Faribault moraine region, an area characterized by gently rolling to steep hilly landscapes with numerous lakes formed in deep irregular depressions called “kettles.”
The 2003 MCWD Hydrologic, Hydraulic, and Pollutant Loading Study (HHPLS) subdivided the Minnehaha Creek subwatershed into 184 subwatershed units, designated MC-1 through MC-184 (see Figure 2). Minnehaha Creek is formed at the outlet of Grays Bay and flows 22 miles to the Mississippi River. The Chain of Lakes in the City of Minneapolis (Brownie, Cedar, Isles, Calhoun, Harriet) drain parts of Minneapolis and St. Louis Park and discharge to Minnehaha Creek. Lake Hiawatha is located in-line to Minnehaha Creek and is heavily influenced by it.