Border Patrol Agent Joe Romero analyzes the freshly-laid footprints. (FoxNews.com)
Footprints on the U.S. side of the Rio Grande River, which shrinks to the width of a small stream at some places, allowing easier penetration. (FoxNews.com)
A portion of the border fence is seen between the Texas towns of Tornillo and Fort Hancock, where at least 30 residents of El Porvenir, Mexico, have crossed into the U.S. and asked for political asylum. (FoxNews.com)
Border Patrol agents ride alone, unlike some other law enforcement agencies, assistance is never far behind. (FoxNews.com)
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The Fort Pizzeria, one of a just a few restaurants in the tiny Texas town. (FoxNews.com)
An abandoned gas station and water tower at the Fort Hancock Merchandise Co., established in 1883.
Saint Teresa Catholic Church, Fort Hancock, Texas. (FoxNews.com)
An abandoned house in Fort Hancock, Texas. (FoxNews.com)
A street in Fort Hancock, Texas. Mexico can be seen in the background. (FoxNews.com)
The uncompleted border fence along Fort Hancock, Texas, separating the town from Mexico's harsh terrain. (FoxNews.com)
U.S. Port of Entry, Fort Hancock, Texas. (FoxNews.com)
Angie's Restaurant, the only diner in town, serves as an unofficial town hall in Fort Hancock, Texas. (FoxNews.com)