ARROYO PRIMERO. Arroyo Primero rises in southeastern Presidio County one mile east of Panther Spring (at 29°23' N, 103°56' W) and runs six miles southeast to its mouth on Fresno Creek, two miles southwest of Chimney Rock (at 29°22' N, 103°51' W). The surrounding desert mountain terrain of volcanic rock is surfaced by sands, clay loam, and rough stone. Sparse grasses, cacti, and desert shrubs grow there.

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Handbook of Texas Online, "ARROYO PRIMERO," accessed August 23, 2019,

Uploaded on June 9, 2010. Published by the Texas State Historical Association.

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