
The Jackson Ranch Church, a stop on the the Underground Railroad to Mexico, in San Juan, Texas. Photo: Courtesy of Roseann Bacha-Garza. A site along the U.S.-Mexico border where enslaved people passed while using the Underground Railroad into Mexico is getting important recognition from the U.S. National Park Service. Why it matters: Historians believe that between 4,000 to 10,000 enslaved Black people may have migrated south, yet there's been little documentation and mentions in history books about the Underground Railroad to Mexico. Zoom in: The NPS announced last month that...