November 2, 2018

Lastest trip report - trip of a lifetime revealed

January 12, 2018

History of Southern Colorado, Wesrcliffe. Custer County and historic Bear Basin Ranch

February 26, 2017

Expedition stories of adventure and discover in the last refuge of the Inca

February 26, 2017

Extreme archaeology in the Peruvian Andes with the National Geographical Society and archaeologist, Gary ziegler

An in-depth analysis of Machu Picchu by Andean archaeologist Gary Ziegler and astronomer, Kim Malville

February 25, 2017

The Royal Geographical Society supported Thomson-Ziegler project which located and investigated the Inca site at Coat Coca in 2002 and rediscovered the archaeological complex of Llactapata in 2003, continues to undertake field explorations seeking new information and...

February 14, 2017

An in-depth study of the Inca Royal Estate, Choquequirao and flora that may have been induced by the Inca. An except from earlier expedition journal notes captures he excitement and adventure that has kept us coming back to the remote Vilcabamba and the mystery of...

February 13, 2017

 A report of the April 2016 Andean Research Expedition to Choquequirao and the upper Apurimac Canyon published in the Peruvian Times.

February 13, 2017

A report of new discoveries and a lost Inca road in Vilcabamba, the last refuge of the Inca empire beyond Machu Picchu

Definitive book about two major Inca Royal Estates modeled after Machu Picchu by Andean archaeologist explorer, Gary Ziegler and noted University of Colorado astronomer, J. McKim Malville.

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