sentences:  In the absence of glacial scouring and drift, this region presents a widespread highly dissected aspect absent from other parts of the state.Northeastern Minnesota was subject to glaciation and its effects, but its hard Archaen and Proterozoic rocks were more resistant to glacial erosion than the sedimentary bedrock first encountered in many other regions, and glacial till is relatively sparse.While the effects of glacial erosion are clearly present and there are some areas of glacial till, older rocks and landforms remain unburied and exposed across much of the region.