With the Huallaga done, the team (Matt Wilson, Ryan Casey, Evan Ross, Ben Luck and Nate and Matthew Klema) headed to Cuzco the famous jumping-off point for visiting Machu Picchu. Besides being the capitol of the last Incan dynasty and the subsequent Spanish regimes, Cuzco is situated in a region that is, essentially, in the middle of the headwaters of two of the longest tributaries in the Amazon basin: The Rio Urabamba and the Rio Apurimac. We set our sites first on the Rio Paucartambo, a tributary of the Urabamba. John Armstrong, Lars Holbek and Jerry Kauffman first ran this stretch of whitewater in 1983. It has seen around half a dozen runs since. Starting at an elevation of 9,842ft in the town of Paucartambo and in 143 miles dropping to an elevation of 1,476ft at its confluence with the Urabamba.