The legal description of a property under the Lot and Block system may be something like; "Lot 5 of Block 2 of the South Subdivision plat as recorded in Map Book 21, Page 33 at the Recorder of Deeds". Some simple maps may only contain a lot and map number, such as "Lot C of the Riverside Subdivision map as recorded in Map Book 12, Page 8 in the office of the City Engineer". The more technical details of the legal description are all contained in the recorded plat map and there is no need to reiterate them in a deed or other legal description.