The lake is widely called 'Spiegelsee' (Mirror Lake) because of its exceptional, glass-like reflection of the Dachstein South Face.
It is technically classified as a small mountain pond, or 'Mittersee', rather than a deep alpine lake.
The water depth varies significantly depending on seasonal snowmelt and rainfall levels.
The lake is situated along the popular 'Reiteralm circular hiking trail', which connects several mountain peaks.
Despite its popularity, the lake does not have any permanent built infrastructure or restaurants directly on its immediate shoreline.
Spiegelsee, officially known as Mittersee, is a small alpine lake located in the Schladminger Tauern mountain range in Styria, Austria. It is renowned for its calm water surface, which creates a near-perfect reflection of the imposing Dachstein massif. The lake is situated at an elevation of approximately 1,860 meters above sea level. It is accessible primarily via hiking trails rather than vehicular roads. The basin is fed by snowmelt and mountain runoff, resulting in cold, clear water. The surrounding terrain is characterized by high-alpine meadows and rocky outcrops. It serves as a popular point of interest for hikers traversing the Reiteralm area.
The northern bank looking toward the south, framing the Dachstein peaks in the water's reflection.
Bring polarized sunglasses to better see through the water surface reflection.
Plan for rapid weather changes typical of high-alpine environments by carrying waterproof layers.
Start your hike early to secure a calm lake surface before midday thermal winds create ripples.
Attempting to reach the lake during late autumn or winter without professional alpine snow equipment, as the paths become hazardous.
Accessible only during the summer hiking season; trails are typically blocked by snow or unsafe from late autumn through late spring.
Avoid swimming or wading in the lake to protect the fragile alpine ecosystem and water clarity.