Apache trout is a federally threatened salmonid native to headwaters of the Little Colorado, Black, and White rivers in east-central Arizona. Decline of Apache trout to threatened status was attributed to over-fishing, habitat degradation and negative interactions (predation, competition and hybridization) with introduced nonnative salmonids. Although over-fishing is no longer considered a threat, habitat degradation and negative interactions with nonnative salmonids continue to threaten Apache trout, and it is towards these threats that recovery actions are directed. While barrier construction began in 1979 and livestock exclusion began in the mid-1980s, the efficacy of these recovery actions at increasing Apache trout abundance and improving habitat condition had not been evaluated. We therefore initiated a study to evaluate the efficacy of riparian fencing and barriers.

A contract between Lan Tazar, a Chinese settler, and Ricardo Ferrero. The contract was to last for six months and lists the legal requirements of both the employee and the employer. Notes that Lan Tazar completed a contract with another owner previously. Signed by the governor of Matanzas, Ricardo Ferrero, and Lan Tazar, who signed in Chinese.

A contract between Le Chan, a Chinese settler, and Domingo. The contract was to last an undisclosed amount of time and lists the legal requirements of both the employee and the employer. Notes that Le Chan had completed a contract with Domingo previously. Signed by Domingo, the governor of Matanzas, and two witnesses.