Sometimes called the single best boulder in the world, the Mushroom Boulder at Hueco Tanks, Texas, has been closed to climbing to protect the soil, plant life, and possible archaeological resources under the rock. The boulder, located at the base of North Mountain, was closed by Hueco Tanks State Historical Park in mid-December. 

The Mushroom Boulder has a dense concentration of classic problems with flat landings, including Local Flakes (V2), the three El Murray problems (V6 to V8), and the Mushroom Roof (V8). 

Access to the many of the boulder problems at Hueco Tanks has been limited for years, with guided tours required to reach large areas of the state park, but North Mountain has had far fewer restrictions. 

Sources: Scott Fitzgerald; Ketox.org/jon/blog/index.php

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