The rock is actually only the visible above-ground portion of a segmented ridge, the surface expression of a large igneous batholith, called the Town Mountain Granite,[9] of middle Precambrian (1,082 ± 6 million years ago)[10] material that intruded into earlier metamorphic schist, called the Packsaddle Schist.

[9] Park activities include hiking, picknicking, rock climbing, primitive backpacking, camping, and caving.

Scheduled Summit Trail tours are on the third Saturday of the month starting April, May, September, October, November, and December.

[17] The state Game Warden as a commissioned peace officer is authorized to inspect natural resources and take any necessary action for their preservation.

Specific species include plateau live oak, Texas beargrass, prickly pear cactus, and sideoats grama.

In 2016, two citizens of San Marcos, Texas were arrested for vandalizing the "... south face of the summit at Enchanted Rock State Park".

[27][28] In August 2024 TPWD approved the purchase of 630 acres adjacent to Enchanted Rock,[29][30] which expanded the size of the park by almost 40%.

In particular, they heard unexplained creaking and groaning, which geologists attribute to night-time contraction of the rock after being heated by the sun during the day.

A plaque formerly embedded in Enchanted Rock near the top but now displayed in a kiosk below reads:[34] From its summit in the fall of 1841, Captain John C. Hays, while surrounded by Comanche Indians who cut him off from his ranging company, repulsed the whole band and inflicted upon them such heavy losses that they fled.Other legends associated with Enchanted Rock: National Register of Historic Places portal Texas portal