Longyear, E. J., First Diamond Drill Site
77001526
EVENT
ARCHITECTURE/ENGINEERING
ARCHITECTURE/ENGINEERING
Longyear,Edmund J.
INDUSTRY
ENGINEERING
ENGINEERING
1875-1899
1890
STRUCTURE
National Register of Historic Places Collection
pdf
319192
7/20/1977
National Register of Historic Places
State: Minnesota
County: St. Louis County
Hoyt Lake ; Off Co. Hwy. 110
Historic
98162931-3eae-4dc7-b6cf-b44603b1d16c
Longyear, E. J., First Diamond Drill Site
77001526
EVENT
ARCHITECTURE/ENGINEERING
ARCHITECTURE/ENGINEERING
Longyear,Edmund J.
INDUSTRY
ENGINEERING
ENGINEERING
1875-1899
1890
STRUCTURE
National Register of Historic Places Collection
pdf
1339169
7/20/1977
National Register of Historic Places
State: Minnesota
County: St. Louis County
Hoyt Lake ; Off Co. Hwy. 110
Historic
ca6135c4-2aea-4224-b28b-b605cba9e5af