0, Issue 0, http://www.tandfonline.com/doi/abs/10.1080/15564894.2015.1105885, accessed 18 Aug 2016 The source of both the balsa logs for rafts and the Spondylus and Strombus seashells was in Ecuador, 1400 kilometers to the north, thus strengthening the view that the Chincha had an extensive reach to their trading activities.