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What are the measurements on this slope angle tool?

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I totally need one of these

enter image description here

This helps you estimate the slope angle on a contour map by measureing the gaps between the contour lines. This is to help you avoid avoid avalanche areas.

I'm sure I could work this out but my maths is terrible. Anyone know what the mm gap is between each of the markers on this tool?

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This post was sourced from https://outdoors.stackexchange.com/q/7798. It is licensed under CC BY-SA 3.0.

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1 answer

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Image capture from John Balwin's website

Source: John Baldwin: Slope Angles from Map Contours

View this page for a refresher on how to do the maths to calculate slope on a topographic map.

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Why does this post require moderator attention?
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This post was sourced from https://outdoors.stackexchange.com/a/7799. It is licensed under CC BY-SA 3.0.

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