Lake City is the only town in Hinsdale County. Hinsdale County is made up of 96% public lands. That means that we have the fewest miles of roads per person, plus the most land area located far from roads, making Hinsdale County the most remote county in the lower 48.
13oz of all-purpose flour is equivalent to 2.95 cups (or 2 19/20 cups). You should be able to round this up to 3 cups without consequence.
Using mass for baking is also more precise. Depending on how it's packed, a cup of flour can weigh anywhere from around four ounces (113 grams) to six ounces (170 grams), a difference of 50%! This can have a real effect on the food. Weighing your flour and other dry ingredients eliminates this variation.