Merriam Park Floral and Gift Company, 2250 University Avenue, St. Paul, 1960, lost to freeway construction. Photo by St. Paul Dispatch-Pioneer Press.

Merriam Park Floral and Gift Company

Merriam Park Floral and Gift Company, 2250 University Avenue, St. Paul, 1960, lost to freeway construction. Photo by St. Paul Dispatch-Pioneer Press.

Rondo Avenue at Arundel Street, St. Paul, ca. 1940.

Rondo Avenue at Arundel Street

Rondo Avenue at Arundel Street, St. Paul, ca. 1940.

Merriam Park Pharmacy, St. Anthony and Prior Avenues, St. Paul, ca. 1910. This building was lost to construction of Interstate 94.

Merriam Park Pharmacy

Merriam Park Pharmacy, St. Anthony and Prior Avenues, St. Paul, ca. 1910. This building was lost to construction of Interstate 94.

United States Steel’s Pilotac plant, 1955. The Oliver Mining Division of USS built the Pilotac plant to develop taconite processing methods. Minntac was the result of these efforts.

United States Steel’s Pilotac plant

United States Steel’s Pilotac plant, 1955. The Oliver Mining Division of USS built the Pilotac plant to develop taconite processing methods. Minntac was the result of these efforts.

United States Steel’s Extaca plant, 1960. The Oliver Mining Division of USS built the Extaca plant to accompany the Pilotac plant in the development of feasible taconite processing methods.

United States Steel’s Extaca plant

United States Steel’s Extaca plant, 1960. The Oliver Mining Division of USS built the Extaca plant to accompany the Pilotac plant in the development of feasible taconite processing methods.

A sign outside a business promoting a “yes” vote on the taconite amendment, 1964.

Sign in support of Taconite Amendment No. 1

A sign outside a business promoting a “yes” vote on the taconite amendment, 1964.

Taconite Amendment bumper sticker, 1964. To promote a “yes” vote on the taconite amendment to rewrite the tax structure that affected taconite operations, advocates made bumper stickers to advertise their cause.

Taconite Amendment bumper sticker

Taconite Amendment bumper sticker, 1964. To promote a “yes” vote on the taconite amendment to rewrite the tax structure that affected taconite operations, advocates made bumper stickers to advertise their cause.

Erie Mining Company’s Concentrator Building under construction, ca. 1954. The Concentrator Building—where taconite is finely ground and iron ore is removed from the rock—was built near Hoyt Lakes around 1954.

Erie Mining Company’s Concentrator Building under construction

Erie Mining Company’s Concentrator Building under construction, ca. 1954. The Concentrator Building—where taconite is finely ground and iron ore is removed from the rock—was built near Hoyt Lakes around 1954.

Hoyt Lakes under construction, 1955. Hoyt Lakes was built to accommodate workers and mine staff by the Erie Mining Company—the Iron Range’s second major taconite facility.

Hoyt Lakes under construction

Hoyt Lakes under construction, 1955. Hoyt Lakes was built to accommodate workers and mine staff by the Erie Mining Company—the Iron Range’s second major taconite facility.

Taconite Harbor, 1956. Taconite Harbor was built to ship ore mined and processed at Erie Mining Company in Hoyt Lakes to steel mills on the Great Lakes. Concentrated ore was shipped from Hoyt Lakes to Taconite Harbor on a private railroad.

Taconite Harbor

Taconite Harbor, 1956. Taconite Harbor was built to ship ore mined and processed at Erie Mining Company in Hoyt Lakes to steel mills on the Great Lakes. Concentrated ore was shipped from Hoyt Lakes to Taconite Harbor on a private railroad.

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