458 



SOUTHERN 



KNOTS AND CHAINS OF 



THE ANDES IN SOUTH 



HEMISPHERE. 



AMERICA. 



Lat. 56° 33' 



K.OCK OI .LJiegO JxdlliircZ. I^dpe xlOm. JTaulgO-' 





nian Andes. Vestiges of the rocky isles of 





Huaytecas and Chonos. Cordilleras of Chili, 





reinforced on the east by the three 



Lat 33°— 31° 



Counter-forts of the Sierra de Cordova. 



Lat.27°— 23° 



of the Sierra de Salta. 



Lat.22°— 18° 



of the Sierra de Cochabamba 





and Santa Cruz. 



Lat. 



Knot of Porco and Potosi. Division in two 



20J°— 19i° 



chains, east and west of the basin of Titicaca : 





Eastern chain, 



Western chain, 





or la Paz and Palca. 



or Tacna and Arequipa. 



Lat.l5°-14 e 



Knot of Couzco. Two chains, east and west 





of Rio Jauja, widened towards the east by the 





counter-fort of Beni. 







Eastern chain, 



Western chain, 





or of Ocopa and Tar- 



or of Huancavelica. 





ma. 





Lat. 



Knot of Huancco and Pasco. Ramification 



11°— 10|° 



in three chains separated by the basins of 





Huallaga and the Upper Maragnon. 





Eastern chain, 



Central chain, 





or of Pozuzu and Mu- 



or of Pataz and Cha- 





na. 



chapoyas. 





Western chain, 





or of Guamaehuco and 





Caxamarca. 



Lat. 



Knot of Loxa. Two chains, east and west of 



5i°-3r 



the basin of Cuenca. 





