I have and use Garmin GPS' but for canoe tripping and custom tailored mapping I use a Delorme PN40se.
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The map subscription has maps, sat/aerial photos, marine charts, and 50K topos for Canada.
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topo and aerial displays of the bridge over the stream from Little Jhon to McFarland.

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Kenny Lake, Quetico, 50K Canadian topo.

butthead