Gratiot Lake GLAKE-4
API 21083009237000 · Keweenaw County, Michigan
Plugging ApprovedPart 625 Test Well
API
21083009237000
Operator
Calumet and Hecla Copper Company
County
Keweenaw
Location
57N-30W-5
Permit
NP17643
Measured depth
117 ft
Location
47.365739, -88.140911
47.36574, -88.14091 · Surface location as filed with Michigan⌘ or Ctrl + scroll to zoom
Every well in Keweenaw County, Michigan
Michigan state record, from MI_wells_Oil__Gas__and_Mineral_Well_Surface_Hole_Locations.parquet. Corpus built 2026-08-19.