Hueco Tanks State Historic Site, Historic site and rock climbing destination in El Paso County, Texas.

Hueco Tanks State Historic Site covers 860 acres in El Paso County, about 32 miles northeast of central El Paso. It consists of three syenite mountains rising from a high-desert basin between the Franklin and Hueco mountains. The huecos are natural rock basins that trap rainwater for months, and the site holds pictographs, some dating to 6000–3000 BC.

People have inhabited this location for over 10,000 years, with rock art dating back to approximately 6000 BC. The site served as an important destination for various Native American cultures seeking water and shelter in the mountain regions.

Most of the pictographs at Hueco Tanks are of Jornada Mogollon origin, and the drawings may have been used in praying for rain. Their religion was influenced by Mesoamerican religions, and many drawings depict Tlaloc, a rain god, and Quetzalcoatl. The Kiowa called the area Tso-doi-gyata-de-dee, meaning "rock cave where they were surrounded."

The park lies about 32 miles northeast of central El Paso, reached by road through open desert. The old Escontrías ranch house now serves as the information center, a good first stop for orientation. The site opened to the public in May 1970 and is managed by the Texas Parks and Wildlife Department.

The Kiowa name for the area, Tso-doi-gyata-de-dee, means "rock cave where they were surrounded", recalling a six-day siege by Mexican soldiers in 1837 in which most of the Kiowa died. In 1852 boundary commissioner John R. Bartlett visited and recorded some of the pictographs.