St. Helena is located in the northernmost sector of the northern region, next to the border with the province of Ciudad Real.

It is of the few municipalities of the province without agricultural vocation, only 1% of the total area. So its economy is based on development of the mountainincluding forest, cicnetic, mushroom collection and livestock (cattle).

The passage of the highway of Andalusia through the municipality has developed in the town a certain hotel offer of importance.

By its term the rivers run Caraway and Bell.The northern part of the municipality of St. Helena belongs to the Natural Park of Despeñacolos, of great landscape, faunistic and botanical interest.

The Park includes, among others:

• Place of the bodies, declared a Natural Monument of Andalusia. A place where a set of huge rock columns that resemble the tubes of the organ of a cathedral. Increases the beauty of this place the chromatic contrast of the grey of the coas with the intense yellow and orange of the different species of lichens that survive in them. On these rocks, oaks, alcornoques and shrubs form a Mediterranean forest in which they inhabit ginets, chickpeas and numerous rapacious birds.

• Embryo de los Organos: It is an affront place that was inhabited from very old, as shown by the rock paintings found. From here we can discover the pineapples of repopulation (carrascos, black, pineapples), sodas of alcornoques, complaints, oaks and madroños.

• The Empedraillo: These are the interesting remains of a small section of the Roman road that unites Catulo (Linares) and the Galena mines of El Centenillo with Toledo.

• Quejigal del Collado de los Jardines: Also located in the Natural Park of Despeñacolos, its biodiversity stands out. In the plant species we find complaints, alcornoques, maples and other species typical of the Mediterranean forest. With regard to the faunistic species that inhabit this place quote the wolf, lince, the otter, imperial eagle, royal eagle and azor.

If anything characterizes Despeñacolos are their unique geological formations. The Despeñapoerno de Despeñaperes, with 4 km of extension is the product of the erosion of the stream of the same name on a natural failure of the Iberian Macizo and the main means of communication between Castilla La Mancha and the lower lands of the Guadalquivir valley.

The municipal term of Castellar has a very irregular form, in the north-south direction it reaches 39 km, while in the east-west it does not reach 10 km. of a maximum width of less than 0,5 km near the Montizon River.

The northern part of the term, known as Sierra del Oro, is mountainous and belongs to Sierra Morena. It presents the typical Mediterranean forest, steep and pedestal areas.

The characteristic fauna is the same as that of Sierra Morena, in which the cynetic species abound: deer, boars, goos, foxes, rabbits, partridges...

The flora is made up of low mountain and native Mediterranean forest: oaks, juniors, madroños, acuches, complaints...

South of the municipal term, being part of the Guadalquivir basin, extends the valley area, more suitable for the cultivation of olive trees, pastures, forage plants and garden areas.