Niederwil, Solothurn

The Balm ruins (German: Ruine Balm or Ruine Balmfluh) are the remains of a fortified cave dwelling at the foot of Balmfluh (alternative spelling: Balmflue) in the Jura Mountains, in the municipality of Balm bei Günsberg in the Canton of Solothurn. It is that canton's only cave stronghold and one of the few in Switzerland. It is a Swiss heritage site of national significance.

Hubersdorf is a municipality in the district of Lebern in the canton of Solothurn in Switzerland.

Günsberg is a municipality in the district of Lebern in the canton of Solothurn in Switzerland.

Balm bei Günsberg is a municipality in the district of Lebern in the canton of Solothurn in Switzerland.

Riedholz is a municipality in the district of Lebern in the canton of Solothurn in Switzerland. In 2011 Niederwil merged into Riedholz.

The Flumenthal Dam is a regulating dam at Flumenthal, Switzerland, which was erected as the most important element of all the works of the Second Jura water correction. It was built to regulate the outflow of Seeland's three-lake hydrologic system as far downstream as Solothurn and the confluence with the river Emme River. It works in conjunction with the Regulating Dam Port at Seeland. The works started in 1966, and the dam and adjoining downstream hydroelectric power station were commissioned in 1970.

Balmberg Pass (elevation 1078 m) is a high mountain pass in the Jura Mountains in the canton of Solothurn in Switzerland. It connects Welschenrohr and Günsberg. The road is one of the steepest pass roads in Switzerland, with gradients of up to 25%. The road is not recommended for novice drivers, big, wide or long vehicles, buses, vans and trucks, caravans, or trailers. It is however, ideal for motorcycles. Oncoming traffic in the middle or on the wrong side of the road can sometimes be encountered, especially in the bends. During periods of snow or ice, the road is closed from the pass summit to Welschenrohr on the north side.

The Emme is a river in Switzerland. It rises in the Alps between the peaks of Hohgant and Augstmatthorn in the canton of Bern. The Emme is 80 kilometres (50 miles) long and flows through the Emmental and between Zuchwil and Luterbach into the Aare. The drainage area is 983 km2 (380 sq mi). The average discharge at the mouth is approximately 20,000 litres per second (5,300 US gallons per second). The maximum discharge can be up to 500,000 L/s (130,000 USgal/s). The Emme is known for its sudden variations in water discharge. The narration Die Wassernot im Emmental (The Water Crisis in the Emmen Valley) by Jeremias Gotthelf impressively describes a very large and destructive, and therefore well-known, flood which occurred August 13, 1837. This and other floods led to the building of numerous canals and dams in the 19th century. The tributaries of the Emme are the Ilfis and the Limpach.

Waldegg Castle is a castle near Solothurn, but in the municipality of Feldbrunnen-St. Niklaus of the Canton of Solothurn in Switzerland. It is a Swiss heritage site of national significance.

Kammersrohr is a municipality in the district of Lebern in the canton of Solothurn in Switzerland. The municipality, located in the Lebern district, is the smallest municipality in Switzerland, both in population and surface area and is situated on a terrace in the southern foothills of the Jura Mountains.

Weissenstein Pass (el. 1284 m.) is a high mountain pass in the Jura Mountains in the canton of Solothurn in Switzerland. It connects Oberdorf and Gänsbrunnen. The pass road has a maximum grade of 22 percent and is one of the steepest roads in Switzerland.

Luterbach-Attisholz railway station (German: Bahnhof Luterbach-Attisholz) is a railway station in the municipality of Luterbach, in the Swiss canton of Solothurn. It is an intermediate stop on the standard gauge Jura Foot line and is served by local trains only.