Northern Prospectors Association

Larder Lake District

The Northern Prospector’s association encompasses the area known as the Larder Lake district. This district stretches from north to south from 80km north of Lake Abitibi to 20 km south of Temagami. The eastern boundary is along the Ontario/Quebec boundary and the western stepped boundary is widest in the Shining Tree area.

The Larder Lake District is served by the Kirkland Lake Regional Resident Geologist office which is located in the town of Kirkland Lake. The Kirkland Lake District includes the communities of Cobalt, Englehart, Haileybury, Kirkland Lake, New Liskeard, Matachewan, Matheson, Shining Tree, Temagami and numerous other small communities.


The recorded history of the area goes back to the early 1600’s when both English and French fur traders were active in the area.Fort Temiscamingue on Lake Temiskaming was established by the French in 1695. Missionaries and loggers were active on the lake as early as the 1830’s, but the first permanent settlement was at the present town of Haileybury in 1885. Several townships were surveyed in 1887, and during the 1890’s settler’s, most from “Old Ontario” moved into the agriculture areas of the ” Little Clay Belt” north of New Liskeard. Settlement was accelerated when the T&NO Railway arrived at Lake Temiskaming in 1904, but the railway also brought with it the discovery of silver at Cobalt. Read more…

Regional Geology

The Kirkland Lake District is underlain by (1) Archean rocks (2.75 to 2.67 billion years old) of the Superior Province of the Canadian Shield (assemblage table and map; (2) Proterozoic, Southern Province Cobalt Group rocks of the Huronian Supergroup (2.5 to 2.22 billion years old) and associated intrusive rocks; (3) highly metamorphosed rocks of the Grenville Province (1.1 billion years old); (4) Phanerozoic sedimentary rocks, Ordovician and Silurian in age; and (5) kimberlite intrusions (approximately 150 million years old). This general geology is described in more detail below.Read more…