Geier Indians
The Geier Indians or Geies  were an 18th-century group of Indigenous people in what became Mexico and the United States. Little is known about this group. 17th century 
In 1675, a Native group, recorded as the Papuliquier (a combination of the names Pacpul and Geier) visited a Spanish town of Monclova, Coahuila. The Franciscan priest Damián Massanet wrote that the Geier and five other Native groups had camped along the Frio River, near San Antonio in 1690. 18th century 
The Geier were last mentioned in 1708, while they were still living in the Frio River valley. They did not join any of the Spanish missions. Language 
Damián Massanet reported that the Geier spoke the Coahuiltecan language. References 

Coahuiltecan
Frio County, Texas
Indigenous peoples in Mexico
Extinct Native American tribes
Native American history of Texas
Pre-statehood history of Texas