Amselɣu: Tamda n Ugelmim, d agelmim i d-yuzgan deg udrar aɣelnaw n Ǧerǧer, i d-yuzgan di tɣiwant n At Buwaddu, la surface ines 5 hectares n wakal di ccetwa d amkan iṣubben mliḥ i d-iǧemmɛen adfel aṭas, adfel-nni mi tɛedda ccetwa, ad yefsi udfel-nni ad yuɣel d agelmim, un lac d’altitude 1.700 m d’altitude s nnig niveau nnig yilel.