Log In
Hays Mine (Pittsburgh & Boston), Copper Harbor, Grant Township, Keweenaw County, Michigan, USAi
| Regional Level Types | |
|---|---|
| Hays Mine (Pittsburgh & Boston) | Mine |
| Copper Harbor | Census-designated Place |
| Grant Township | Township |
| Keweenaw County | County |
| Michigan | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
47° 27' 56'' North , 87° 51' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Copper Harbor | 108 (2017) | 1.9km |
Commodities (Major) - Copper
Deposit Type: Fissure Copper Veins
Development Status: Past Producer
Deposit Model: 96: Native Cu
Host Rock Unit: Portage Lake Volcanics
Host Rock: Basalt
The Hays Mine, located at Fort Wilkins State Park (there are also pits on Hays Point), was started in 1844 after soldiers building the Fort ran across large rocks that contained a black copper oxide. Miners from the Hays Point operations were sent to explore the area and discovered the continuation of the black copper oxide veins discovered at Hays Point. In 1845, two shafts were drilled and yielded about 40 tons of ore. Later in the year a third shaft was sunk down to a depth of 120 feet. Exploration work tracked the vein across the lake and an adit was drilled into the side of the hill. During this time, the mine owner (The Pittsburg and Boston Company) began work on another mine south on the Peninsula that would become the first profitable copper mine on the Keweenaw, the Cliff Mine. All three shafts can be seen today; however, because they are on State Park property, no collecting is allowed.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
4 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cuprite Formula: Cu2O |
| ⓘ Native Copper Formula: Cu |
| ⓘ Tenorite Formula: CuO |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Tenorite | 4.AB.10 | CuO |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Tenorite | CuO |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Cu | Copper | |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Tenorite | CuO |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Mid-continent DomainDomain
- Mid-continent RiftNarrow Rift
USA
- Michigan
- Keweenaw PeninsulaPeninsula
- Midcontinent RiftGeologic Province
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Hays Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA