Statistics for occurrence #1 of “San Mateo” in chapter 29 of John Dimitry , A. M., Confederate Military History, a library of Confederate States Military History: Volume 10.1, Louisiana:

...e circumstances he was obliged to retreat, a movement which was accomplished in the face of the most appalling difficulties. He passed on the west side of the Sierra Madelena, through the Sierra de San Mateo until he reached the dry bed of the Rio Palomas, down which he continued until he reached the Rio Grande, where supplies had been sent from Mesilla to meet him. His route had been through the wildest...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
San Mateo (California, United States) 12 2 2 0 0 user votes
San Mateo (Philippines) 7 0 1 0 0 user votes
San Mateo (Anzoategui, Venezuela) 0 0 0 0 0 user votes
San Mateo (Florida, United States) 0 0 0 0 0 user votes
San Mateo (Mexico, Mexico) 0 0 0 0 0 user votes
San Mateo (New Mexico, United States) 0 0 0 0 0 user votes
San Mateo (South Carolina, United States) 0 0 0 0 0 user votes
San Mateo (Spain) 0 0 0 0 0 user votes
San Mateo (Zacatecas, Mexico) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.