erc: who: National Flood Insurance Program (U.S.) what: Flood Insurance Rate Map: Dallas County, Texas (Unincorporated Areas), Panel 285 of 360. when: 1982 where: https://texashistory.unt.edu/ark:/67531/metapth312500/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/