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Keweenaw Mineral Collecting

Lodging and Camping

Keweenaw Mineral Days

Hosted by the A. E. Seaman Mineral Museum

in collaboration with Keweenaw Gem and Gift

Silver Level Supporters


Evergreen Exploration LLC, Howell, Michigan



Red Metal Minerals, Ontonagon, Michigan

Super Week-long Sale August 4-9, 2014
Gitche Gumee Landing Gift Shop
202Ontonagon St., Ontonagon, MI


Supporter Events

Monday August 4 to Thursday August 7

By Request Ore Pile Days at the Caledonia Mine

Come collect on your own private ore pile for four hours. Dig through 3 cubic yards of ore in search of native copper, silver, rare  Keweenaw datolites. quartz, feldspar, calcite, epidote. and other exciting Minerals. We provide tools, food, and fun. See for more details.

By Request "Do you want to be a miner?"

Learn and actually experience how to drill and muck using authentic mining equipment. Fun and exciting. See for more details.

Monday August 3

Surface Collecting at the Famous Nebraska Mine (1852)

Nebraska Mine was active in the mid 1800’s on the Butler Lode. Excellent specimens of copper, silver, Halfbreeds, epidote, quartz and feldspar. See for more details.

Tuesday August 4

Surface Collecting at Mass C Shaft (1850-1920)

Caledonia Mine was active in the mid 1800’s, 1930’s, and 1950’s and was reopened for specimen mining in 1986. Most of the dump material is from the Knowlton Lode, however some work was done on the Butler. Famous for world class datolite, copper, silver, prehnite, and calcite crystals. See for more details.

Wednesday August 5

Surface Collecting at Historical Flint Steel Mine (1855)

Flint Steel Mine was active in the 1850’s until work was suspended in 1858. Reorganized in 1863 under a different name and finally merged with the Caledonia in 1871. The mine consisted of one shaft and groups of pits. The Flint Steel produced 870,000 pounds of copper. Excellent source of copper, datolite. and some silver. See for more details.

Thursday August 6

Surface Collecting at Historical Ridge Mine (1849-1920))

Ridge Mine was active in 1850 and worked until 1855 when it was then leased. Reorganized in 1863 and worked again until 1896 when the mine was shut down due to unpaid taxes. In 1899 the Ridge Mine was combined with the Mass Mine. Excellent specimens of copper, copper crystals. See for more details.


Saturday August 1

Ishpeming Rock and Mineral Club Show
9:30 pm to 4:30 pm

Sunday August 2

Ishpeming Rock and Mineral Club Show
9:30 am to 4:30 pm


Friday August 7

Copper Country Rock and Mineral Club Show 1 pm to 8 pm

Saturday August 8


Copper Country Rock and Mineral Club Show 10 am to 6 pm



Sunday August 9

Copper Country Rock and Mineral Club Show 11 am to 3 pm




Updated January 21, 2015


Back To Keweenaw Mineral Days page

A.E. Seaman Mineral Museum
Michigan Technological University
1404 E. Sharon Avenue
Houghton, Michigan 49931-1295
Telephone: (906)487-2572

2014 A.E. Seaman Mineral Museum