Hermosillo , an inland town of Mexico, in the state of Sonora, lat. 29° 20' N., and Ion. 110° 40' W., 40 m. S. W. of Ures; pop. about 14,000, about 3,000 of whom are Yaqui In- dians. It is situated in a sandy valley near the base of an isolated mountain, not far from the confluence of the Sonora and Horcasitas rivers. The streets are regular, and the houses built mostly of adobe, though a great many are of stone. The only public buildings are two churches and the mint, to which latter is at- tached an assay office. The climate is exceedingly hot, but the people are generally healthy. Mining was once extensively carried on, but the chief industry is now agriculture, wheat being the great staple production. Numerous flour mills in the town and vicinity form a striking feature of the place. The vine thrives well, and large quantities of brandy are manufactured. Hermosillo was formerly the seat of the presidio of Pitic, and up to 1800 a military station. After the discovery of gold mines in Sonora the population grew rapidly, and Hermosillo is still the most important commercial entrepot of this part of the republic. Its port is Guaymas, about 100 m.

S., on the gulf of California.