Browsing by Subject "Itasca County"
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Item Community Building on the Edge of the Wilderness(2007) Huntley, ErinnItem Completion Report Jessie Lake Paleolimnology Project(University of Minnesota Duluth, 2002) Kingston, JohnJessie Lake is a high-priority lake in terms of the Itasca County Water Plan, recognized as an important resource for multiple-use recreation and for its walleye (Stizostedium vitreum (Mitchill)) fishery in particular. The Jessie Lake Watershed Association has been particularly active in promoting and participating in research to understand and improve the resource. The major concern in the watershed is increasing nutrient loading, according to recent lakewater phosphorous studies. Internal loading is also implicated in keeping the algal growth in the lake at high levels. We are presently using diatoms for paleolimnological interpretations of past baselines, trends, and magnitudes of change in lakewater phosphorous. Jessie Lake has been eutrophic since before European settlement of the area, though phosphorus concentrations were higher in the middle of the 20th century than they are now.Item Final Report on Sediment Diatom Reconstructions for Four Itasca County Lakes(University of Minnesota Duluth, 2009) Reavie, Euan DDue to potential threats to water quality and fishery health, four lakes in Itasca County (Minnesota) were selected for retrospective analyses. Primary goals were to determine background conditions and track probable long-term degradation, timing of impacts and remediation. The lakes range from developed (Buck, Shallow and Round lakes) to currently undeveloped (Willeys Lake). Sediment cores were collected from each lake and sediment intervals were dated using isotopic analyses. Diatom assemblages were assessed from sediment intervals and inferred trophic conditions in the profiles were derived using a regional diatom-based model for Minnesota lakes. Fossil remains, in concord with other stratigraphic indicators (organic and inorganic materials, sedimentation rates, other biological entities), were used to reconstruct the ~200-year history of each lake system. Buck Lake experienced eutrophication and other anthropogenic impacts, but in recent decades the lake has at least partly remediated. Shallow Lake has apparently undergone numerous nearshore anthropogenic shifts, but development has not resulted in an overall increase in nutrient concentrations. Water quality response to early watershed modifications of Round Lake was limited but eutrophication became a problem in the latter portion of the 20th century due to historic and recent land use activities. Despite being selected as an “undeveloped” lake, Willeys Lake showed some subtle impacts due to likely deforestation in the lake’s catchment.Item Geology of Scenic State Park(Minnesota Department of Natural Resources, 1950-08) Zumberge, James H.Brief summary of the geology of Scenic State Park, northeastern Itasca County, Minnesota.Item Itasca County Resorts and Tourism(2002) Burns, AndreaItem Itasca County tax-forfeited forest and natural resources land : an assessment of land sale policies and programs.(University of Minnesota, 1996-05) MacKay, Donald G.; Ellefson, Paul V.Item Limnological Assistance to Itasca County, MN for “Lake Protection Tools for Itasca County”(University of Minnesota Duluth, 2005-01) Jereczek, John; Ruzycki, Elaine; Axler, Richard PItem Local Option Sales Tax Analysis for Itasca County, MN(2022) Pesch, Ryan; Bennett, John