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The Gigerwald Dam is an impressive arch dam, standing 147 meters (482 feet) high and stretching 430 meters long. It holds back the Gigerwaldsee reservoir, which has a volume of 35.6 million cubic meters and covers a surface area of 71 hectares (180 acres). The reservoir is approximately three kilometers long and 135 meters deep at its deepest point.

Yes, the dam wall itself offers spectacular views of the reservoir and the surrounding rugged rock faces that rise almost 2,000 meters. Further along the reservoir, the tranquil Walser settlement of St. Martin provides a scenic destination. The entire Calfeisental valley is characterized by its wild mountain landscape, with the Gigerwaldsee being the largest lake exclusively within the canton of St. Gallen.

Parking is available at the Gigerwald Dam. While the intro mentions availability, visitors often find that parking fills up quickly, especially during peak season. It's advisable to arrive early to secure a spot. Specific details on fees are not provided, but it's common for popular Swiss attractions to have paid parking.

While the intro highlights accessibility by car and bike, public transport options to Gigerwald Dam are more limited. Typically, visitors would need to take a bus to Vättis and then potentially arrange for a local taxi or hike/cycle the remaining distance to the dam. It's recommended to check local bus schedules for the most up-to-date information.

Yes, the Gigerwald Dam area offers options for families. The ability to walk or cycle across the dam wall is an easy and engaging activity. There are also relatively easy walks along the reservoir, particularly towards the Walser settlement of St. Martin, which can be suitable for families. Always consider the fitness level of all family members when choosing a route.

Generally, dogs are welcome on trails in the Swiss Alps, including around Gigerwald Dam. However, it is always recommended to keep dogs on a leash, especially in areas with livestock or wildlife, and to clean up after them. Specific rules regarding dogs on the dam wall itself or within certain facilities should be checked locally upon arrival.

At the far end of the Gigerwaldsee, in the Walser settlement of St. Martin, there is an inn that offers food, drink, and accommodation during the summer months. For more extensive options, you would need to look in nearby villages such as Vättis or further afield in the wider St. Gallen region.

The hiking difficulty around Gigerwald Dam varies. The path along the reservoir towards St. Martin is generally considered relatively easy. However, trails branching off into the surrounding Calfeisental can range from moderate to challenging, involving significant elevation changes and rugged terrain. Hikers should choose routes appropriate for their experience and fitness level.

The Gigerwaldsee reservoir is located at an altitude of 1335 meters above sea level, with the dam itself at approximately 1343 meters. The surrounding rock faces rise almost 2,000 meters, meaning trails in the area can involve substantial ascents and descents, offering significant elevation gains for hikers and trail runners.

The Gigerwald Dam was completed in 1976 as part of the Sarganserland KSL power plants project. Its primary purpose is to generate electricity, producing 460 million kWh annually. The water collected in the reservoir, originating from the Calfeisen and neighboring Weisstannen valleys, is turbined in the Mapragg and Sarelli power stations.

Yes, guided tours of both the Gigerwald Dam and the Mapragg power station are available upon request. These tours offer valuable insights into the dam's operation, its history, and the engineering marvel behind its construction.

The Gigerwald Dam and reservoir recently underwent significant renovation work, which required the reservoir to be completely drained by the end of September 2024. The work is expected to be completed by April 2025, with the reservoir refilling in spring 2025 and a reopening scheduled for early summer 2025. Visitors should check current conditions before planning a trip.