San Tadeo River

Map of the Isthmus of Ofqui and San Tadeo River. In red a 19th century canal project.

San Tadeo River (Spanish: Río San Tadeo) is a river in the Isthmus of Ofqui, Aysén Region, Chile. San Tadeo River flows in a SSW direction into the Gulf of San Esteban. It drains much of the swampy Isthmus of Ofqui and the meltwater from San Quintín Glacier's proglacial lake.

The river has historically been used as an importante lane to cross the isthmus.^[1][2][3] Indigenous Chono nomads, Jesuit missionaries and Spanish explorers all used the river to cross the isthmus in colonial times.^[1][2][3]

References

1. Urbina Carrasco, María Ximena (2010). "La navegación por los canales australes en la Patagonia Occidental insular en los siglos coloniales: La ruta del istmo de Ofqui" [Navigation on the Austral channels in the islands of Western Patagonia during colonial centuries: The route of the isthmus of Ofqui]. Magallania (in Spanish). 38 (2): 41–67. doi:10.4067/S0718-22442010000200003. Retrieved December 21, 2019.
2. Álvarez A., Ricardo; Navarro P., Magdalena; Saavedra G., Gonzalo; Donoso C., Cristián (2015). "Referencias exploratorias sobre el lago Presidente Ríos, para sortear el Istmo de Ofqui, Península de Taitao, Región de Aysén" [Exploratory references on Presidente Ríos lake, for routes round the Ofqui Isthmus, Taitao Peninsula, Aysén Region, Chile]. Magallania (in Spanish). 43 (1): 91–101. doi:10.4067/S0718-22442015000100006. Retrieved December 21, 2019.
3. Vásquez Caballero, Ricardo Felipe (2008). "Aau, el secreto de los chono" (PDF) (in Spanish). Retrieved January 24, 2019. {{cite journal}}: Cite journal requires |journal= (help)

46°45′39″S 74°13′31″W