Driving in Tahoe

This past weekend me and some friends went to South Lake Tahoe and we had to guide our way back home through the cold, snowy, treacherous weather. In order to determine the way to go home we inputed the directions into our maps, but the connection was poor and we ended up having to switch directions midway through the trip due to bad road conditions. Because of this we were forced to analyze the map to determine the proper route to go home--we were studying the differences in terrain and how the mountains were distributed in the map in order to find our way home quickly and safely.  The topography of the map was a vital part of how we got home because it provided us with a prediction of what to expect with the roads. On the other hand, the representation of the map itself proved to be important, but it was difficult to navigate how effective the routes were going to be because weather was not taken into account with the maps that were provided on our phones.