 Large freight wagons pulled by up to 10 mules replaced pack trains, and toll roads built and kept passable by the tolls made it easier to get to the mining camps, enabling express companies to deliver firewood, lumber, food, equipment, clothes, mail, packages, etc.to the miners.Later when communities developed in Nevada some steamboats were even used to haul cargo up the Colorado River as high as where Lake Mead in Nevada is today.