Enter the locations you wish to calculate the percent grade between. Can be location names like Skykomish, WA & Stevens Pass, WA or two specific addresses. For curvy roads you will notice that the grade is calculated between Location 1 & 2 only, not using the points in between. This means the "% grade" number given to you is the average from the bottom to the top of the incline, not necessarily following the road.
Examples:
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