2019 Map of Jack Mountain

About this map

Jack Mtn and the Twin Mountains dominate the rugged landscape northwest of Boerne, where the borders of Kendall, Bandera, Bexar, and Medina counties converge. This region is defined by its complex drainage network, where the headwaters of Balcones Cr and the San Geronimo Cr carve deep into the Texas Hill Country. The presence of the Heimsath Cem and Heimsath Cemetery Lake indicates long-standing family ties to the land, while named water sources like Wolf-Head Spring and Beekman Spring reveal the vital locations of reliable water in this upland terrain. Modern infrastructure is represented by the Freedom Springs Ranch Airport and an evolving network of residential roads like Crown Jewel and Diamond Ridge, showing the area's transition toward rural-residential development. The map also traces significant local landmarks like the Cedar Hill Divide and the historic path of the Chisholm Trl.