When national newspapers reported in 1938 that a large dam would be built in northern California, hundreds of job-seeking families streamed into Shasta County. Shasta Dam would be America's last large concrete dam and would take years to build, offering employment for those fortunate enough to secure a construction job during the Great Depression. Captured here in over 200 rare photographs is the story of the building of Shasta Dam, the boomtowns...