Biogeochemistry of southwestern Lake Superior and watershed, 2017-2021

76 sites were visited less than ten times and 12 sites were visited at least ten times. Parameters were measured by common methods as detailed in the metadata. The locations sampled each year varied depending on goals. All data are georeferenced. ; Between 2017 and 2021, 1368 water samples were collected from Lake Superior and its watershed in the region generally between Duluth-Superior and Ashland, WI. Parameters include forms of carbon, nitrogen, and phosphorus, along with total suspended solids, chlorophyll, and phycocyanin. ; the National Park Service and the Brico Foundation.