Cucao and Huillinco

{{Infobox lake

| name = Cucao and Huillicno Lake
Lago Cucao y Huillinco

| image = Lago Cucao-tarde.jpg

| caption = View of Cucao Lake

| image_bathymetry =

| caption_bathymetry =

| location =

| coords = {{WikidataCoord|display=inline,title}}

| type =

| inflow =

| outflow = Cucao River, also called Desaguadero River

| catchment = {{convert|32.3|km2|abbr=on}} (Cucao)

| basin_countries = Chile

| length = {{convert|7.9|km|abbr=on}} (Cucao)

| width = {{convert|1.8|m|abbr=on}} (Cucao)

| min_width = {{convert|0.7|m|abbr=on}} (Cucao)

| area = {{convert|43.8|km2|abbr=on}} (Cucao)

| depth = {{convert|25|m|abbr=on}} (Cucao)

| max-depth = {{convert|12|km|abbr=on}} (Cucao)

| volume = {{convert|0.127|km3|abbr=on}} (Cucao)

| residence_time =

| shore = {{convert|22.9|km|abbr=on}} (Cucao)

| elevation = {{convert|10|m|abbr=on}}

| frozen =

| islands =

| cities =

| pushpin_map = Chile

| pushpin_label_position =

| pushpin_map_alt = Location of Cucao and Huillinco in Chile.

| pushpin_map_caption =

| website =

| reference =

}}

Cucao and Huillinco are two lakes in central Chiloé Island, Chile, linked by a strait forming one hydrologic lake. The two lakes are oriented in west-east fashion cutting off the Chilean Coast Range in Chiloé Island into two ranges; Piuchén to north and Pirulil to the south. The outlet of the lakes, Desaguadero or Cucao River lies at the western end of Cucao Lake, and flows into the Pacific. To the west Cucao is separated from the open ocean by an ancient dune field and pastures which are crossed by Desaguadero River.{{Cite journal |title=Paleotsunami record of the past 4300 years in the complex coastal lake system of Lake Cucao, Chiloé Island, south central Chile |journal=Sedimentary Geology |url=https://www.sciencedirect.com/science/article/pii/S0037073820300592 |last=Kempf |first=Philipp |issue=15 |volume=401 |last2=Moernaut |first2=Jasper |year=2022 |editor-last=Knight |editor-first=Jasper |last3=Van Daele |first3=Maarten |last4=Pino |first4=Mario |last5=Urrutia |first5=Roberto |last6=De Batist |first6=Marc |author-link4=Mario Pino Quivira}} The bottom of both lakes is saline.Villalobos, L., Parra, O., Grandjean, M., Jaque, E., Woelfl, S., Campos, H. (2003). [https://www.researchgate.net/profile/Oscar-Parra-6/publication/288216753_A_study_of_the_river_basins_and_limnology_of_five_humic_lakes_on_Chiloe_Island/links/553a82270cf29b5ee4b64d22/A-study-of-the-river-basins-and-limnology-of-five-humic-lakes-on-Chiloe-Island.pdf A study of the river basins and limnology of five humic lakes on Chiloé Island]. Revista Chilena de Historia Natural, 76 (4), 563–590.