Events – Post Office

This page allows you to see a list of Keweenaw History events relating to Keweenaw County Post Offices.

Upcoming Events › post-office

November 2017

11/08/1880-A post office is re-established at Minong, Isle Royale

November 8

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11/15/1909-The post office at Delaware Mine was discontinued.

November 15

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11/19/1849-A post office named Northwest Mine is established at Delaware

November 19

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11/19/1862-A post office named Penn Mine was established at Delaware

November 19

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11/30/1908-The Hebard post office is discontinued, the mail sent to Mohawk

November 30

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December 2017

12/03/1874-A post office is established at Island Mine on Isle Royale

December 3

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12/03/1884-The post office at Clifton was discontinued and the mail sent to Phoenix.

December 3

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12/08/1871-A post office named Central Mine (two words) was established at Central

December 8

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12/12/2006-The Allouez post office becomes ZIP 49901. It is still active

December 12

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12/12/2006-The Copper Harbor post office becomes ZIP 49918

December 12

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