Uchi Subprovince From Wikipedia, the free encyclopedia Volcanic sequence in Manitoba, Canada The Uchi Subprovince is a Neoarchean volcanic sequence in Manitoba, Canada.[1] Volcanism of Canada Volcanism of Western Canada References ↑ Bailes, A.H.; Percival, J.A. (2000). "Geology and structure of the North Caribou Terrane-Uchi Subprovince boundary in eastern Manitoba, with emphasis on volcanic and volcaniclastic rocks of the Black Island Assemblage" (PDF). Report of Activities 2000, Manitoba Industry, Trade and Mines, Manitoba Geological Survey: 161–174. Retrieved 17 April 2026. 50°43′44″N 95°27′36″W / 50.729°N 95.460°W / 50.729; -95.460 This article about a specific geological feature in Manitoba, Canada is a stub. You can help Wikipedia by adding missing information.vte Related Articles