Lacs de Maclu

{{Infobox lake

| name = Grand Lac Maclu

| image = Panorama des quatre lacs.jpg

| caption =

|pushpin_map=France Franche-Comté

| image_bathymetry =

| caption_bathymetry =

| location = Jura department, Franche-Comté

| coords = {{Coord|46|37|31.3|N|5|54|26.8|E|region:FR-39_type:waterbody_source:dewiki|name=Grand Lac Maclu}}

| type =

| inflow =

| outflow =

| catchment =

| basin_countries = France

| length = {{convert|1.1|km|abbr=on}}

| width = {{convert|300|m|abbr=on}}

| area = {{convert|0.21|km2|abbr=on}}

| depth =

| max-depth = {{convert|24|m|abbr=on}}

| volume =

| residence_time =

| shore =

| elevation = {{convert|779|m|abbr=on}}

| frozen =

| islands =

| cities = Le Frasnois

}}

Lacs de Maclu (or Lacs de Maclus) are two lakes at Le Frasnois in the Jura department of France.

The Grand Lac Maclu has a surface area of 21 ha and a length of 1.1 km with a maximum width of 300 m.{{Cite journal |last=Belle |first=Simon |last2=Millet |first2=Laurent |last3=Gillet |first3=François |last4=Verneaux |first4=Valérie |last5=Magny |first5=Michel |date=2015-08-01 |title=Assemblages and paleo-diet variability of subfossil Chironomidae (Diptera) from a deep lake (Lake Grand Maclu, France) |url=https://doi.org/10.1007/s10750-015-2222-4 |journal=Hydrobiologia |language=en |volume=755 |issue=1 |pages=145–160 |doi=10.1007/s10750-015-2222-4 |issn=1573-5117|url-access=subscription }} Its maximum depth is 24 m. The lake is located in the municipalities of Le Frasnois and La Chaux-du-Dombief.

Petit Lac Maclu is located northeast of the former and has a surface area of 5 ha with a length of 500 m and a maximum width of 120 m. Its maximum depth is 11 m. The lake is located in with the municipality of Le Frasnois.{{Cite web |title=The 4 Lakes (Ilay, Narlay, Petit Maclu and Grand Maclu) {{!}} Montagnes du Jura |url=https://en.montagnes-du-jura.fr/the-4-lakes/ |access-date=2022-10-20 |website=en.montagnes-du-jura.fr |language=en-GB}}