Best natural monuments around Bundorfer Forst are found within a contiguous forest area in the northern Haßberge Nature Park, recognized for its ecological significance. This region is designated as a nature reserve, a Fauna-Flora-Habitat (FFH) area, and a bird sanctuary, underscoring its importance for biodiversity. The landscape features old deciduous forests interspersed with moist meadow valleys, providing habitat for protected animals and rare plants. Exploring these areas offers an opportunity to experience an unadulterated forest ecosystem.
Last updated: June 24, 2026
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The first sandstone spring casing from the 1940s was redesigned in 1973 and acquired its current representative appearance in 1985. A bronze plaque by Erich Husemann from Trappstadt has commemorated the importance of the Franconian Saale since 1987. The spring stream flows southwest through Alsleben, where it joins the Fleusengraben, and joins the left source stream north of Bad Königshofen-Untereßfeld. Source: https://de.m.wikipedia.org/wiki/Fr%C3%A4nkische_Saale
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The Franconian Saale originates in the Grabfeld near the Haßberge Mountains, east and southeast of Bad Königshofen, respectively, from two roughly equal, 3.9 km long source streams: Its right and northern source streams originate from the Saalbrunnen (not to be confused with the Saalbrunnen, also located in Franconia), approximately 1.7 kilometers east of Alsleben, a district of Trappstadt. The spring is located in an open field, less than 500 meters from the Thuringian border, just off the NES 45 district road, which leads to Gompertshausen. The young Franconian Saale rises there at 313 meters above sea level, below the Kapellenberg (390 meters above sea level). Source: https://de.m.wikipedia.org/wiki/Fr%C3%A4nkische_Saale
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The moated castle is almost hidden away, accessible via a small road that branches off from Sulzdorf at Lederhecke. https://inges-reiseblog.de/wasserschloss-brennhausen/
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Brennhausen Castle is privately owned and can only be viewed from the outside. https://grabfeld-grenzenlos.de/burg-brennhausen/
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The northern source of the Franconian Saale rises here. The spring is beautifully framed and there is a nice place to sit there.
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Todays use The lake is now used as a local recreation area. Large parts are open to swimming, diving, sailing and fishing. The remaining areas are created as biotopes and designated as nature reserves. Another use is as water retention to avoid flooding in spring when the snow melts and to feed the Sauerquellebach with enough water in the dry times in summer and autumn. With a total area of 33 hectares, the lake is the largest reservoir in Lower Franconia.[1] It is surrounded by forest all around. The circular route is 4.4 km long. Parts of the north shore of the lake have sunbathing areas, a sandy beach and bathing jetties. In 1983 and 2022 the lake was completely drained for renovation work. After a ground closure was built in 2022, the reservoir no longer needs to be completely emptied in the event of renovation work. The drain was closed again on September 22, 2022 and the filling of the lake with rainwater and snow is expected to be completed by spring 2024. https://de.wikipedia.org/wiki/Ellertsh%C3%A4user_See
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The Bundorfer Forst is home to several significant natural features. Key among them are the Naturwaldreservat Nesselsee, a 44.6-hectare nature forest reserve where the forest develops undisturbed, and the adjacent Naturschutzgebiet Nesselgrund, known for its wet meadow complexes and alder swamp forests. The Reuthsee, one of the largest natural landscape lakes in Lower Franconia, is also a notable natural monument in the area. Additionally, the Baunach river flows through the forest, and the Balzerstein reaches 493 meters as the highest elevation.
Yes, the area features historical elements alongside its natural beauty. For instance, Brennhausen Castle is a remarkable moated castle situated in a lake, with its oldest parts dating back to the 13th century. It offers a unique blend of history and natural setting.
The Bundorfer Forst, particularly within areas like the Naturwaldreservat Nesselsee and Naturschutzgebiet Nesselgrund, provides a crucial habitat for diverse wildlife. You might spot various woodpecker species, bats, and the black stork. The region is also known to host protected animals such as the wildcat, and rare plants like the Large Two-blade, foxglove, Siberian Iris, and various orchids.
The Bundorfer Forst offers a variety of outdoor activities. You can explore numerous running trails, such as the 'Stone Crucifix and Rest Area – Sulzfelder Lake loop,' or enjoy cycling routes like the 'View of Lake Ellertshäuser – Main Street, Haßfurt loop.' For mountain biking enthusiasts, there are gravel biking routes like the 'Jägerpfad Schwedenschanze – Trail to Schwedenschanze loop.' You can find more details on these activities in the dedicated guides for running, cycling, and gravel biking around Bundorfer Forst.
Yes, several natural monuments around Bundorfer Forst are suitable for families. The Sulzfelder Lake is a beautifully situated bathing lake with a path around it, ideal for a family outing. The Source of the Franconian Saale (Alsleben) also includes a rest area and information board, making it an accessible and interesting stop for all ages. Many trails around the lakes are also easy to navigate for families.
For an experience of untouched nature, visit the Naturwaldreservat Nesselsee. This reserve is specifically managed to avoid forestry intervention, allowing the forest to develop naturally. It features old beech stands, abundant deadwood, and natural succession areas, providing a unique insight into a wild forest ecosystem.
The Naturschutzgebiet Nesselgrund, adjacent to the Naturwaldreservat Nesselsee, is significant for its distinct wet meadow complexes and alder swamp forests. It's a vital habitat for specific flora and fauna that thrive in these moist environments, contributing greatly to the region's biodiversity.
Visitors particularly enjoy the serene beauty and diverse landscapes. Many appreciate the opportunity to cool down at lakes like Sulzfelder Lake on hot days, or the impressive views of historical sites like Brennhausen Castle. The starting point of the Franconian Saale is also a popular spot for its historical significance and peaceful rest area.
Yes, the Sulzfelder Lake is a fantastic option for swimming and recreation, offering a welcome cool down. The Ellertshäuser Lake also serves as a local recreation area, with large parts open to swimming, diving, sailing, and fishing, though it has undergone renovation work recently.
The Source of the Franconian Saale (Alsleben) marks the starting point of the Franconian Saale river. It's considered a natural monument due to its ecological importance as a river source and its role in the regional landscape. The site features a rest area and an information board detailing its origins, making it an interesting and educational stop.
The terrain around Bundorfer Forst is diverse, featuring extensive forest areas, wet meadow valleys, and the gentle flow of rivers like the Baunach. You'll find paths around lakes, through dense woodlands, and along riverbanks. The highest elevation is the Balzerstein at 493 meters, indicating some hilly sections, but many areas, especially around lakes and protected reserves, offer relatively flat and accessible routes.


Extend your search for the best caves by checking out these guides of the top ones around Bundorfer Forst: