Grand Sable Dunes temporary closure to all public entry for visitor safety
Grand Sable Dunes are rapidly eroding into Sable Creek and Lake Superior. The area from the trail to the Grand Sable Dunes north to the beach along Lake Superior to the west side of Sable Creek is temporarily closed. Follow closure signs for your safety. More »
NPS photo / Leah Kainulainen
Water resources are of prime importance at Pictured Rocks National Lakeshore. The park's science staff conducts annual inventory and monitoring projects to assess the overall condition of the park's inland lakes. By accumulating baseline data over many years, scientists can better understand each lake's natural features and therefore recognize changes when they happen – particularly human-caused changes that might require management action.
Continued monitoring will help staff separate trends that might arise from human origins (such as climate change, acid rain, invasive species, nutrient run-off, impacts from high recreational use, and chemical contaminants) from natural fluctuations.
As part of the Great Lakes Network, Pictured Rocks and other national park sites use the same testing protocols so that results may be analyzed not only for each individual park but for the Great Lakes region as a whole. The results will allow researchers to detect changes and trends on a much larger scale.
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Did You Know?
Pictured Rocks National Lakeshore shares a visitor center with the Hiawatha National Forest. The interagency visitor center was dedicated in 1988, and serves over 40,000 people annually. Other federal interagency visitor centers are located in Alaska, Utah, California, and Idaho. More...