Note II'-3 — Chapter II · ITINERARY, CONTINUED: THROUGH OLD MEXICO, IN CHIHUAHUA, DURANGO, AND COAHUILA, TO THE PRESIDIO GRANDE, MARCH 22D-MAY 31ST, 1807.

Pike's "little fosse" is no doubt the acequia below Carrizal. Ojo Caliente is present name of a station on the railroad between Carmen station and Las Minas; and the warm springs where Pike camps are those at or near Alamo de Peña, 10-12 m. below Carrizal, a mile short of the crossing of Rio Carmen. Gregg and Wislizenus both describe the springs in similar terms, as forming a large basin of clear, pure, lukewarm water in porphyritic rocks, with a sandy bottom, fed from various sources, and overrunning in a rivulet into the Carmen. "It forms," says Gregg, Com. Pra., II. p. 80, "a basin some 30 feet long by about half that width, and just deep and warm enough for a most delightful bath at all seasons of the year. Were this spring ... anywhere within the United States it would doubtless soon be converted into a place of fashionable resort." Wislizenus determined a temperature of 82° F., the air being 84½° F. Hughes in Doniphan's Exp., p. 108, also describes the spring and states that it was formerly the seat of a princely hacienda, "belonging to Porus, a Spanish nabob," who at one time had on his estate 36,000 head of stock.