Pioneer Clarification Basin
Reservoir in St. Louis County, Minnesota · on the USGS Shagawa Lake quadrangle
47.88824, -91.90681
Maps that show Pioneer Clarification Basin
Get them in the map app
Shagawa Lake, MN
Detailed map of terrain, trails and roads
USGS topo, 2022
Shagawa Lake
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Ely, MN
Old map for history, not navigation
USGS historical 15-minute topo (1933)
Ely, MN
Old map for history, not navigation
USGS historical 15-minute topo (1939)
Superior National Forest
Forest Service forest map
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-14 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-02 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).