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Aetna Earthworks
(added 1973 - Site - #73002157)
Address Restricted, Missaukee County
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| Historic Significance: |
Information Potential
| | Area of Significance: |
Prehistoric
| | Cultural Affiliation: |
Late Woodland
| | Period of Significance: |
1499-1000 AD
| | Owner: |
State
| | Historic Function: |
Domestic
| | Historic Sub-function: |
Camp
| | Current Function: |
Landscape
| | Current Sub-function: |
Unoccupied Land
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Boven Earthwork
**
(added 1973 - Site - #73002293)
Also known as The Boven Earthwork
Address Restricted, Lake City
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| Historic Significance: |
Information Potential
| | Area of Significance: |
Prehistoric
| | Cultural Affiliation: |
Native American
| | Period of Significance: |
1499-1000 AD
| | Owner: |
Private
| | Historic Function: |
Unknown
| | Current Function: |
Agriculture/Subsistence
| | Current Sub-function: |
Agricultural Fields
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Canyon Falls Bridge
**
(added 1999 - Structure - #99001464)
US 41 over Sturgeon R., L'Anse Township
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| Historic Significance: |
Architecture/Engineering
| | Architect, builder, or engineer: |
Michigan State Highway Department
| | Architectural Style: |
Other
| | Area of Significance: |
Engineering
| | Period of Significance: |
1925-1949
| | Owner: |
State
| | Historic Function: |
Transportation
| | Historic Sub-function: |
Road-Related
| | Current Function: |
Transportation
| | Current Sub-function: |
Road-Related
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