Fonds F 4470 - Collection of construction photographs of the Canadian Niagara Power Company and Ontario Power Company power plants

Title and statement of responsibility area

Title proper

Collection of construction photographs of the Canadian Niagara Power Company and Ontario Power Company power plants

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Reference code

CA ON00009 F 4470

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Statement of scale (cartographic)

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Issuing jurisdiction and denomination (philatelic)

Dates of creation area


  • [circa 1903-1930] (Creation)

Physical description area

Physical description

Extent188 photographs : glass plate negatives

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Archival description area

Name of creator

Administrative history

The Canadian Niagara Power Company was incorporated in 1892 under the leadership of William Birch Rankine and is the only Niagara Falls power company to remain privately owned. As of 2015, Canadian Niagara Power is a wholly owned subsidiary of FortisOntario Inc.

Name of creator

Administrative history

The Ontario Power Company (OPC) was a private, American-owned firm that applied successfully in 1901 for a share of the water flowing over Niagara Falls. In 1905, the company built its hydro-electric generating plant below the Horseshoe Falls. In 1999, the Ontario Power Generation Company (formerly Ontario Hydro) decommissioned the Ontario Power Station from service and agreements were concluded in 2006 for the transfer of this plant as well as other Niagara properties to the Niagara Parks Commission.

Custodial history

Scope and content

Fonds consists of photographs created and accumulated of the Canadian Niagara Power Company and Ontario Power Company power plants, as well as images concerning city drainage.

Notes area

Physical condition

Immediate source of acquisition

The provenance of this collection and date of donation to the Archives of Ontario is not known.


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Restrictions on access

Consult the individual series descriptions for information on access restrictions.

Terms governing use, reproduction, and publication

Consult the individual series descriptions for information on terms governing use of this material.

Finding aids

For a more detailed description, use this link to the Archives of Ontario's descriptive database:

Associated materials

See also: Canadian Niagara Power Company Limited fonds and the New York and Ontario Power Company fonds at Library and Archives Canada; and Canadian Niagara Power Company Fonds (RG 170) at the Brock University Archives.

See also: C 224-38 Niagara Generating Station construction photographs; RG 38-9, Niagara Parks Commission journal of accounts; and RG 38-13, Niagara Parks Commission gauges book.

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No further accruals are expected.

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Description record identifier

F 4470

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Language of description

  • English

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