Enchanted Rock dome, Llano and Gillespie counties, Texas
Enchanted Rock dome is centrally situated in Texas (Fig. 1) and is easily accessible via state asphalt roads. The site is maintained year long, and for a small fee the visitor can climb to the top of the dome. The site can be reached by driving 17 mi (27.4 km) north from Fredericksburg on Texas 965 or south from Llano 15 mi (24.1 km) to the intersection of Texas 965. From there it is 8 mi (12.9 km) to the site. The exfoliation dome is the largest of five domes extending in a line for 1.75 mi (2.82 km) along the west side of Sandy Creek. The dome covers an area 0.4 x 0.6 mi (0.64 x 0.96 km) and is 425 ft ( 129.5 m) high. Granitetectonic features of the dome can easily be seen in half a day (Fig. 2).
Figures & Tables
One of six volumes generated by each GSA section for the Decade of North American Geology (DNAG) project, this Centennial Field Guide contains descriptions of 100 sites or site clusters representing outstanding geologic locations in Arkansas, Kansas, Oklahoma, and Texas.