A new study details how historically redlined neighborhoods across the U.S. that scored lowest in racially discriminatory maps drawn by the government-sponsored Home-Owners Loan Corporation (HOLC ...

Using HOLC maps, oil and gas well data and U.S. Census figures, the study analyzed neighborhoods in 33 cities across 13 states that were appraised by HOLC between 1935-1940. Of the 12,000 wells ...