|Latitude & Longitude (WGS84):||43° 19' 4'' North , 80° 0' 28'' West|
|Latitude & Longitude (decimal):||43.31778,-80.00778|
|Köppen climate type:||Dfb : Warm-summer humid continental climate|
There are currently (2008) 3 pits in existence. One active and two being used for storage and processing. There was a fourth pit (Brow Pit) that was closed sometime in the 1920's(?). It was subsequently used as a garbage dump and is now landscaped. There have been several owners of the pits, the most recent being LaFarge Ltd. This was preceded by Steetley Industries (1951 - ?) which operated two pits fronting on Hwy 5, which was in turn was preceded by Canada Crushed Stone (1912 - 1951).
All quarries and their names reflect a continuous operation with the name changes tracking the historical progression of ownership and the several pits which were consecutively and concurrently worked. The pit currently being worked is LafargeDundas North Quarry (from the sign at the entrance 2008).
Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
22 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
252.17 - 541 Ma
|Paleozoic sedimentary rocks|
Age: Paleozoic (252.17 - 541 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. 
419.2 - 443.8 Ma
Age: Silurian (419.2 - 443.8 Ma)
Stratigraphic Name: Guelph Formation
Description: massive, light brown dolostone
Comments: tan to brown, fine- to medium-crystalline, sucrosic dolostone; fossiliferous, locally biohermal; Bruce Peninsula area: lower part includes bituminous, locally laminated, grey-brown to black dolostone (Eramosa Mb)
Reference: Armstrong, D.K, and J.E.P. Dodge. Paleozoic geology of southern Ontario. Ontario Geological Survey Miscellaneous Release–Data 219. 
419.2 - 427.4 Ma