Thin tree rings and frost rings have been found in trees of the Western USA such as in Montana and correlate to the Huaynaputina eruption. 1601 and 1603 tree rings close to the tree line in Quebec indicate cold temperatures, and anomalous tree rings and cooling in Idaho have been linked to the eruption as well. 1601 saw the coldest temperature in a Seward Peninsula, Alaska record of the last 600 years, as well as in other places of northwestern and southeastern Alaska. Noticeable cooling has been inferred for the Western US from tree ring data. In addition, weather in the Arctic Archipelago of Canada was unusually wet.