[1][2] Aspero is located on the right bank of the Supe River, 2 km south of the port of the same name, about 500 m from the Pacific Ocean, in the midst of sandy hills, wetlands and cultivated fields.

To access the site, visitors have to walk 2 km southwest from the Plazuela Grau, along the Pérez de Cuellar housing estate.

Caches were found in these structures including clay figurines, wooden bowls, feathers, cotton, and string and cane objects.

Carbon dating of the communal structures of the local sites surrounding the Supe Valley places Aspero within 3700~2500 cal.

Researchers have established a general timeline which links Aspero and its adjacent sites to a much larger cultural system that spread across several valleys.