Flora and fauna
The most characteristic flora is represented, in addition to the poplar, oak, elm, scrub oak and broom, by the salicor and esparto grass.
There are several endorheic and salt lagoons that have been declared Nature Reserves and boast characteristic flora, including the Moorish sedge or almorchín, endangered species in the region. Also recognizable are the Lygeum spartum rock formations, whose conservation is of priority interest because they contain plants listed in the Regional Catalogue of Endangered Species. The rock formation located between El Longar lagoon and the town of Lillo is considered one of the best-preserved and largest rock formations in the entire province of Toledo. Particularly notable are the Lepidium cardamines and Limonium costae species.
The land fauna is represented by rabbits and hares and the occasional, although rare, fox. The most typical birds are the red-legged partridge, quail, turtle dove, wood pigeon and pigeon. Among the birds of prey are the lesser kestrel and Montagu's harrier. The lagoons, in addition to being declared a Nature Reserve, are also included in the Site of Community Importance "Wetlands of La Mancha" and the Special Protection Area for Birds (SPA) "wetlands of La Mancha". The main faunal value is the aquatic birds: stilt, black-winged stilt, avocet, common crane, Kentish plover, lapwing, white-headed shelduck, red-crested pochard, as well as marsh harriers. [2] [3]
Part of the municipality of Lillo is also included in the SPA of the Steppe Area of North La-Mancha, where the presence of great bustard colonies is particularly noteworthy.
Geology
This section describes the most important characteristics of the existing formations, as well as the hydrogeological behavior of the materials. The data were obtained from sheet 659 of the Geological Map of Spain from the Geological and Mining Institute of Spain.
The geomorphological features correspond to those of a plain that forms part of the southern edge of the Ocaña Mesa. The gentle topography is caused by Miocene and Pliocene materials, which give rise to mesas as a consequence of the current hydrographic network. Isolated and breaking up the monotony of the landscape, a series of Cambrian reliefs resistant to erosion appear as island mountains.
Discordant with the Paleozoic, the Continental Tertiary appears subject to lateral facies variations, from east to west. Tertiary deposition begins with Vindobonian clayey and evaporite series that end with the Pontian calcareous sections.
Quaternary materials are well represented by the lagoonal gypsum clay-silt formations of Lillo and hillside debris surrounding the Paleozoic quartzite outcrops.
Spain 
Castile-La Mancha 
