Key to Trees of Logan Canyon

Option 1
Are the leaves mostly 2" wide or wider, with edges that have few rounded teeth or no teeth and rounded angles between the lobes?

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Option 2
Are the leaves 2 1/2" wide or less, with sharply toothed edges and sharp angles between the lobes? It is a Rocky Mountain maple (Acer glabrum).

Rocky Mountain Maple sketch

Rocky Mountain Maple Leaves