This Harris County Major Thoroughfare Map by Key Maps Inc covers the greater Houston area as follows: NORTH to Conroe, SOUTH to League City, EAST to Baytown, and WEST to Brookshire. Highways and major streets are labeled and features color coded municipalities, zip codes, water features and points of interest. It is on the same grid system as Key Maps' Houston Atlas
allowing you to use the two in conjunction. This is an excellent map for regional planning and routing and comes laminated. Updated for 2019.