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
Girnar Jain temples by the brothers Tejapala and Vastupala (built 1177) who also built Dilwara Temples on Mount Abu. The plan is that of 3 temples joined together. The shrine has a blue black image of Mallinath, the 19th Tirthankar. Farther North is the temple of Samprati Raja. This temple is probably one of the oldest on the hill, dated 1158 (likely of renovation). Samprati is said to have ruled at Ujjain in the end of the third century BCE, and to have been the son of Kunala, Ashoka's third son. South of this, and 200 feet above the Jain temples on way