Mushure menguva yekuputika kwemakomo makore 1.1 bhiriyoni apfuura, geological basa reMinnesota rave rakadzikama, pasina kuputika kwemakomo kana kugadzirwa kwemakomo, asi nekusavapo kwakadzokororwa kwegungwa, uko kwakasiya masisitimu mazhinji emarara. Munguva dzichangopfuura, chando chakakora chinenge kiromita imwe chakaparadza nyika uye chakavezwa nzvimbo yayo. Zvasara zveichi volcanic dombo zvakaumba Canadian Shield kuchamhembe kwakadziva kumabvazuva kweMinnesota. Midzi yemakomo anoputika aya uye chiito chePrecambrian gungwa chakaumba Iron Range yekuchamhembe kweMinnesota.
Minnesota