New 9th Edition! The most complete and accurate map book available for the Rio Grande Valley. More than 21,000 street listings. Covers McAllen, Brownsville, Matamoros, Pharr, Harlingen, Edinburg, Hidalgo, Reynosa, Mission, Port Isabel, South Padre Island, Weslaco, San Benito, Rio Grande City, Raymondville, etc. Over 230 pages of maps, covering more than 9,000 square miles in both Texas and Mexico. Including all of Cameron, Hidalgo, Starr and Willacy Counties and portions of Kenedy, Brooks, Zapata and Jim Hogg Counties. Includes GPS coordinates for rural areas. Updated December 2007.