H. E. Hazard Real Estate Maps and Photographs date from 1960 to 1980 and contain maps and aerial photographs, primarily of Las Vegas and Clark County, Nevada. Compiled by former Nevada legislator and realtor Harry Edward "Hap" Hazard (1894-1971), the collection includes more than sixty plat, topographic, engineering, sales, utility, zoning, and real estate maps, as well as twenty-two black-and-white aerial photographs.