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The Rock River Canyon Wilderness is a 4,640-acre (18.8 km2) unit within the Hiawatha National Forest. It is located in Alger County, Michigan. The wilderness is accessible from M-94, which runs south of the unit in a west-to-east direction. The nearest town is Chatham, Michigan, which is located approximately 3 miles (4.8 km) south of the wilderness unit's eastern end. Like the rest of the Hiawatha Forest, the Rock River Canyon Wilderness was logged starting about 1880 and ending about 1930. The typical method of logging was to clear-cut all marketable timber and leave the discarded slashings on the forest floor. A severe forest fire was almost inevitable, followed by severe erosion and the creation of a second-growth forest that differed from the previous old-growth forest in many ways.… (责任编辑：) |