Inca road system (English Wikipedia)

Out of about 200 known pukaras 100 of them are found in Northern Ecuador and 30 of them in Northern Chile and Argentina. See Anderson, Amber M., "War and Conquest: Inca strategies and struggles in Northern Ecuador", https://www.academia.edu/11358577/War_and_Conquest_Inca_strategies_and_struggles_in_Northern_Ecuador, accessed 27 May 2017
Bauer, Brian (----). Suspension Bridges of the Inca Empire" - http://www.academia.edu/6953894/Suspension_Bridges_of_the_Inca_Empire

archive.org (Global: 6^th place; English: 6^th place)

D'Altroy, Terence N. (2002). The Incas. Blackwell Publishers Inc. ISBN 0-631-17677-2.
Incas: lords of gold and glory. New York: Time-Life Books. 1992. pp. 94–97. ISBN 0-8094-9870-7.
Cameron, Ian (1990). Kingdom of the Sun God: a history of the Andes and their people. New York: Facts on File. p. 65. ISBN 0-8160-2581-9.

historiaperuana.pe (Global: low place; English: low place)

"Colapso Demografico en la población de la colonia" - https://historiaperuana.pe/periodo-colonial/virreinato/la-poblacion-en-el-virreinato/

incatrailtours.com (Global: low place; English: low place)

Life Styles of the Rich and Famous: Luxury and Daily Life in the Households of Machu Picchu's Elite. Lucy C. Salazar; Richard L. Burger. "The Inca: From Village to Empire". Yale Peabody Museum Social Studies Curriculum (PDF). Archived from the original (PDF) on 2008-12-19. Retrieved 2008-12-19.

machupicchutrek.net (Global: low place; English: low place)

Macallister, Alison (April 11, 2024). "A Short History Of The Inca Trail – A Fascinating Tale". Machu Picchu Trekking Guide. Mountain IQ. Retrieved September 12, 2025.

museogarcilaso.pe (Global: low place; English: low place)

Garcilaso Inca de la Vega – "Primera parte de los comentarios reales de los incas, escrita por Garcilaso Inca de la Vega y publicada en 1609, en Lisboa" --- http://museogarcilaso.pe/mediaelement/pdf/3-ComentariosReales.pdf Archived 2018-09-20 at the Wayback Machine

nazwa.pl (Global: low place; English: low place)

farkha.nazwa.pl

Krzanowski Andrzej. Observaciones acerca de la construcción y el trazado de algunos tramos del camino inca en los Andes peruanos - Kraków, Poland - http://www.farkha.nazwa.pl/contributions/pcnwa/cnwa/CNWA2.4.pdf Archived 2021-08-31 at the Wayback Machine

smithsonianmag.com (Global: 663^rd place; English: 431^st place)

"How the Inca Empire Engineered a Road Across Some of the World's Most Extreme Terrain". Smithsonianmag.com. Retrieved 2015-07-01.

voxeu.org (Global: low place; English: low place)

Voxeu.org: "Long-term effects of the Inca Road"

web.archive.org (Global: 1^st place; English: 1^st place)

Krzanowski Andrzej. Observaciones acerca de la construcción y el trazado de algunos tramos del camino inca en los Andes peruanos - Kraków, Poland - http://www.farkha.nazwa.pl/contributions/pcnwa/cnwa/CNWA2.4.pdf Archived 2021-08-31 at the Wayback Machine
Garcilaso Inca de la Vega – "Primera parte de los comentarios reales de los incas, escrita por Garcilaso Inca de la Vega y publicada en 1609, en Lisboa" --- http://museogarcilaso.pe/mediaelement/pdf/3-ComentariosReales.pdf Archived 2018-09-20 at the Wayback Machine
Fellman, Bruce (2002). Rediscovering Machu Picchu - Yale Alumni Magazine- December 2002 "Rediscovering Machu Picchu" Archived 2016-05-06 at the Wayback Machine
Life Styles of the Rich and Famous: Luxury and Daily Life in the Households of Machu Picchu's Elite. Lucy C. Salazar; Richard L. Burger. "The Inca: From Village to Empire". Yale Peabody Museum Social Studies Curriculum (PDF). Archived from the original (PDF) on 2008-12-19. Retrieved 2008-12-19.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Bar Esquivel, Alfredo (2013). Afectaciones históricas a la red vial inca y la necesidad del estudio documentario de carreteras para la investigación y el registro de caminos prehispánicos – Cuadernos del Qhapaq Ñan - Año 1, N° 1, 2013 / ISSN 2309-804X

worldhistory.org (Global: 2,330^th place; English: 1,976^th place)

Cartwright, Mark (8 September 2014). "Mark Cartwright "The Inca Road System", 2014". World History Encyclopedia. Retrieved 22 January 2019.

yale.edu (Global: 559^th place; English: 389^th place)

peabody.yale.edu

Life Styles of the Rich and Famous: Luxury and Daily Life in the Households of Machu Picchu's Elite. Lucy C. Salazar; Richard L. Burger. "The Inca: From Village to Empire". Yale Peabody Museum Social Studies Curriculum (PDF). Archived from the original (PDF) on 2008-12-19. Retrieved 2008-12-19.

yalealumnimagazine.com (Global: low place; English: 9,394^th place)

archives.yalealumnimagazine.com

Fellman, Bruce (2002). Rediscovering Machu Picchu - Yale Alumni Magazine- December 2002 "Rediscovering Machu Picchu" Archived 2016-05-06 at the Wayback Machine

Inca road system (English Wikipedia)

academia.edu (Global: 105th place; English: 99th place)

archive.org (Global: 6th place; English: 6th place)

historiaperuana.pe (Global: low place; English: low place)

incatrailtours.com (Global: low place; English: low place)

machupicchutrek.net (Global: low place; English: low place)

museogarcilaso.pe (Global: low place; English: low place)

nazwa.pl (Global: low place; English: low place)

farkha.nazwa.pl

smithsonianmag.com (Global: 663rd place; English: 431st place)

voxeu.org (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

worldcat.org (Global: 4th place; English: 4th place)

search.worldcat.org

worldhistory.org (Global: 2,330th place; English: 1,976th place)

yale.edu (Global: 559th place; English: 389th place)

peabody.yale.edu

yalealumnimagazine.com (Global: low place; English: 9,394th place)

archives.yalealumnimagazine.com

academia.edu (Global: 105^th place; English: 99^th place)

archive.org (Global: 6^th place; English: 6^th place)

smithsonianmag.com (Global: 663^rd place; English: 431^st place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 4^th place; English: 4^th place)

worldhistory.org (Global: 2,330^th place; English: 1,976^th place)

yale.edu (Global: 559^th place; English: 389^th place)

yalealumnimagazine.com (Global: low place; English: 9,394^th place)