A century-old, single-trunk olive tree enclosed within a square plot bordered by four mouldings bearing the cross of the Order of Calatrava.

The Salado de Arjona rises in the municipal district of Los Villares and flows through the Campiña region of Jaén in a roughly north–south direction over some 48 km, before flowing into the Guadalquivir river near the town of Marmolejo. The main towns within its basin are Martos and Lopera. It flows into the Guadalquivir within the municipal district of Marmolejo.

The great appeal of this park lies in its views and the large number of benches for resting, along with its function as an eco-park, allowing visitors to exercise on its outdoor gym equipment, although access to these is over uneven ground. The park has a children's play area that is not accessible, as it has a step of around 12 cm.

Recently built between 1993 and 1997, its dam wall stands on the slopes of the Lambra area, and its waters submerge parts of the municipal districts of Ibros, Vilches, Rus, Canena, Úbeda, Navas de San Juan and Sabiote. It holds an immense artificial lake formed by the impounded waters of the river, known as the "sea of La Loma", the second largest reservoir in Jaén and the third largest in the Guadalquivir basin, with a capacity of 475 hm³. Beneath its waters lies the submerged monumental 16th-century Puente Ariza bridge, designed by the architect Andrés de Vandelvira. Three homes were also flooded, and 12 residents had to be relocated. It is used for irrigation, fishing, swimming and electricity generation, and has a tourist jetty.