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Tumacácori National Historical Park Fronteras
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Santa Rosa de Corodéguachi - Alias Fronteras
Santa Rosa de Corodéguachi - alias Fronteras
Courtesy British Library
1767 map of Fronteras (Santa Rosa de Corodéguachi) by José de Urrutia
The legend says: Plan of the Presidio of Fronteras, dependent upon the government of Sonora and located at 31 degrees and 17 minutes of latitude north, and 253 degrees and 24 minutes of longitude from the Tenerife meridian. Explanation: A.Captain's house; B.Guardhouse; C.Church: D. First Plaza; E. Second Plaza; F. Mill. Note: All of these buildings are made of adobes. Scale: two hundred fathoms. Joseph de Urrutia
The map shows two roads to Cuquiárachi and one each to Guchuta and Janos. It also shows the “Irrigation ditches for irrigating.”
 
Fronteras, Sonora

Fronteras, Sonora. The ruins of the Spanish Presidio Santa Rosa de Corodéguachi lie at the point of the hill in the upper right hand corner of this photograph.

The ruins of the Presidio of Santa Rosa de Corodéguachi, commonly called "Fronteras" can be visited today by crossing the international border at Douglas, Arizona / Agua Prieta, Sonora and proceeding south to the town of Fronteras. The ruins are at the point of the hill on the west side of town past the town hall.

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Last Updated: August 31, 2011 at 14:39 MST