This department has a rough topography, which is characterised by heavy layers of
volcanic lava covering large areas of its inter-
Andean sector. It has deep canyons such as the ones formed by the
Ocoña and Majes rivers.
Plateaus range in height from medium, such as La Joya, and high-altitude ones such the Arrieros Pampa and those located in the zones of Chivay, Huambo and Pichucolla. Volcanic cones, such as
Misti,
Chachani,
Ampato,
Mismi,
Solimana and
Coropuna, emerge above the plateaus and attract snowfall. In contrast with these heights, there are deep
canyons, including Majes,
Colca, Sihuas and Ocoña, where important aspects of the
ecological evolution of this zone can be clearly observed. Along the coast, small plateaus and
dunes represent characteristics of the desert of Arequipa, such as the ones located in the Majes, Sihuas and La Joya plains. These are particularly beautiful and developed. From a
hydrographic point of view, the rivers draining its territory belong mainly to the Pacific watershed. Some rivers belong to the
Amazon hydrographic system. Some of the region's main rivers are: Ocoña, Yauca, Camaná and Quilca. The starting point of the
Amazon River is located in the Arequipa region. The highest mountains of Arequipa are: • Coropuna 6,425 mamsl, Ampato Range. • Ampato 6,288 mamsl, Ampato Range. • Solimana 6,093 mamsl, Ampato Range. • Chachani 6,057 mamsl, Volcanic Range. • Hualca Hualca 6,025 mamsl, Ampato Range. • Sabancaya 5,976 mamsl, Ampato Range. • Misti 5,822 mamsl, Volcanic Range. • Nocarane 5,784 mamsl, Volcanic Range. • Pichu Pichu 5,664 mamsl, Volcanic Range. • Chila 5,654 mamsl, Chila Range. • Casiri 5,647 mamsl, Chila Range. • Mismi 5,597 mamsl, Chila Range. • Minaspata 5,555 mamsl, Chila Range. • Quehuisha 5,514 mamsl, Chila Range. • Surihuiri 5,506 mamsl, Chila Range. • Tacune 5,500 mamsl, Volcanic Range. • Firura 5,498 mamsl, Ampato Range. • Yuraccasa 5,465 mamsl, Chila Range. • Jatunpila 5,450 mamsl, Chila Range. • Jatun Huaychahui 5,445 mamsl, Huanzo Range ==Political division==