Walking Time from any Trail in Yellowstone

This is distance/time calculation using a formula for calculating walking speed based on the ToblerAway walking time formula. The formula factors in different land attributes, like land usage, terrain type, elevation, slope, water bodies, rivers, and vegetation density, allowing the map to display the walking time, rather than the distance, away from any trail in Yellowstone NP. Homework lab assignment, 11/16/2022