After, the miner can obtain the gold and collect it with the rest. When gold was found in a new area, miners would move and make stationary camps to sleep in, and the camps would eventually grow into towns called boomtowns. The cities of San Francisco and Columbia are two examples of boomtowns during the gold rush. Most of the boomtowns eventually turned into ghost towns. When the gold ran out in an area, the miners would leave to find the next gold strike. The businesses would leave too and soon the town would be empty and abandoned. Most camps and mining towns were canvas tents or wooden buildings. Fires were very common, some several times, so many camps and towns were completely destroyed by fire. Most miners came by themselves, leaving their families at home. Many young miners suffered from homesickness from being alone. By 1869 railroads were built across the country from California to the eastern part of the United States. At its peak, technological advances reached a point where significant financing was required, increasing the amount of gold companies ask out of every miner, so it led to some wealth for a