New and exciting maps, atlases and geospatial data available in the map room or from the Maps & Cartography resources guide.
Between 1935 and 1940, the federal government’s, Home Owners' Loan Corporation (HOLC), graded the "residential security" of 250 cities across the country and assessed 1000’s of neighborhoods by producing maps that graded these neighborhoods from "best" or safe investments to “hazardous” or bad investments giving them grades of “A - green” to “D - red”. These assessments determined the amount of financial risk for banks, saving and loans, and other lenders who made mortgages. The impact from those assessments is still with us today.