Reservoir re-housed, historical artifacts moved or rare environments relocated. Examples include the temples of Abu Simbel (which were moved before the construction of the Aswan Dam to create Lake Nasser from the Nile in Egypt), the relocation of the village of Capel Celyn during the construction of Llyn Celyn, and the relocation of Borgo San Pietro of Petrella Salto during the construction of Lake Salto. Construction of a reservoir in a valley will usually need the river to be diverted during part of the build, often through a temporary tunnel or by-pass channel. In hilly regions, reservoirs are often constructed by
Great and Small Temples of Abu Simbel his chief wife, Nefertari, in very high esteem, and she probably wielded quite a lot of power. Around their legs, smaller statues of their children are shown. Unlike the colossi at the Great Temple, each statue is recessed in its own niche, making it look as if Ramesses II and Queen Nefertari are coming out of the rock. Unlike the Great Temple, the Small Temple has one pillared hall called the square hall that contains six columns supporting the ceiling. Each column is topped with a depiction of Hathor. The dedication of the temple to Queen Nefertari by Ramesses II