Publisher: Geological Survey / Spatial Coverage: Ontario - Yale University Library GeoBlacklight Search Results

1. Essex County and parts of adjacent counties, southwestern Ontario ... showing structure contours drawn on top of the Norfolk and Guelph formations, and positions of wells drilled to obtain oil and natural gas / [cartographic material]

1945. 2012-06-28T12:55:24Z. 2012-07-05T13:04:26Z. Geological Survey of Canada. Geological Survey. English. Public. Ontario, Kent (County), and Essex (County).

2. Part of Niagara Peninsula, Ontario, showing structure contours drawn on top of the Clinton formation and positions of wells drilled to obtain natural gas [cartographic material]

1940. 2012-06-07T18:06:49Z. 2012-06-13T15:05:19Z. Canada. Bureau of Geology and Topography. Geological Survey. English. Public. Ontario and Niagara Peninsula.

3. Province of Ontario, District of Rainy River (Hunters Island sheet)

1890. 2018-06-19T19:18:13Z. 2018-09-05T20:08:08Z. Geological Survey of Canada. Geological Survey. English. cartographic image. Public. Ontario, Rainy River (District), and Rainy River (Ont. : District).

4. Thunder Cape, Lake Superior, Ontario [cartographic material]

1924. 2018-06-19T19:09:52Z. 2018-09-05T20:08:13Z. Tanton, T. L. Geological Survey. English. cartographic image. Public. Ontario and Thunder Cape Region.