By the 1800s, Rainbow Bridge was probably seen by wandering trappers, prospectors, and cowboys. Occupations preferred&colon; Rangers, lumberjacks, northwoodsmen, hunters, prospectors, explorers and game wardens. Prospectors for hardrock, or lode gold deposits, can use many tools. During this rapid influx of prospectors and settlers, tensions with the Cherokee increased. Two years after Gaillard's visit, the first prospectors and settlers arrived. Hawaii became a popular winter destination for frustrated prospectors in the 1850s. Sourdough was used by prospectors and pioneers to make pancakes without having to buy yeast. Gold discoveries continued to trigger violent conflict between prospectors and Indians. To accommodate the prospectors, boom towns sprang up along the routes. The brands on the burros are recognized as those sold to three prospectors months before. The less fortunate or less well funded prospectors rapidly found themselves destitute. These were farming and livestock grazing, plus as a transit area for prospectors. The first of these communication innovations was the use of pigeons by Catalina's gold prospectors. A German named Henry Wickenburg was one of the first prospectors. Some of the richest prospectors lived flamboyantly in Dawson.