Roads were established leading west and southwest of Marquette, and some rivers had already been diverted for use in mining. Logging and mining have been a major part of land use activities in the subsection. Mining for iron in the Michigamme Range created many large open-pit mines. The diversion of creeks and rivers has undoubtedly had an impact on associated wetlands, either by flooding or removal of water sources. Some impoundments are highly polluted by mine tailings and chemical products of mining.
Urban development is concentrated around Marquette.
Recreation is an important land use, both along the shoreline and inland. The open bedrock ridges, which have not been completely explored, may be floristically different from those of other parts of Michigan. Many of the rare plants of the subsection are found on either cliffs or bedrock balds. Nature Reserve Area. The McCormick Research Natural Area also protects a large tract of northern hardwoods, including some mature areas of white pine.