Heiterwanger See (German for “Heiterwang Lake”) is a natural lake situated in the state of Tyrol, Austria. The lake lies at the southern foot of the Lechtal Alps, within the municipal boundaries of Heiterwang in the district of Reutte.
Geography and physical characteristics
- Location: Approximately 12 km southwest of the town of Reutte, at an elevation of about 1 172 metres (3 846 ft) above sea level.
- Surface area: Roughly 0.09 km² (9 hectares).
- Maximum depth: Approximately 10 metres (33 ft).
- Catchment: The lake is fed primarily by underground springs and surface runoff from the surrounding alpine terrain.
Hydrology
Water from Heiterwanger See drains through the Heiterwangbach, a tributary that ultimately joins the Lech River. The lake’s water balance is maintained by a combination of spring inflow, precipitation, and limited surface runoff.
Ecology
The lake supports a typical alpine freshwater ecosystem, including cold‑water fish species such as brown trout (Salmo trutta). Aquatic vegetation is limited by the lake’s depth and temperature regime, with species adapted to oligotrophic (nutrient‑poor) conditions.
Human use and accessibility
Heiterwanger See is a popular local destination for recreational activities such as swimming, angling, and hiking. A network of trails encircles the lake, providing access to the surrounding mountains and offering scenic views of the Tyrolean landscape. The lake’s proximity to the village of Heiterwang makes it accessible by road and public transport during the summer months.
Conservation
The lake lies within a region subject to Austrian environmental protection regulations aimed at preserving alpine water bodies and their surrounding habitats. Management measures focus on maintaining water quality, protecting native species, and regulating recreational use to mitigate ecological impact.
References
Information compiled from Austrian geographical and environmental sources, including regional hydrographic surveys and alpine ecological studies.