This paper examines the main characteristics of natural order associated to touristic practices thatsubsist in the San Luis Potosí territory, located at the meridian limit of the ancient Aridoamérica and occupies a central portion of the United States of Mexico. This federative entity differs from the national context by its demographic growth and important industrial development, condition that is more relevant in the State headquarter. However, in spite of its varied and abundant natural attributes that include desert zones, steppes, tropical perennial forest and other vegetation associations of transcendental importance that complement the natural attractions, good for economic activities. Even in the xxi century the touristic activity in San Luis Potosí has had a marginal dynamics out of the state planning policies, which shows that the natural conditions have not been, by themselves, a significative sparkling to push its growth.The proposed results of this research are part of the project «Natural and socioeconomic potential for ecotourism development in the State San Luis Potosí, México», financed by a concurrent fund of the National Council of Science and Technology and the government ofthe State of San Luis Potosí. / El presente trabajo examina las principales características de orden natural asociadas a lapráctica del turismo que subyacen en el territorio de San Luis Potosí, que se localiza en el lí- mite meridional de la antigua Aridoamérica y ocupa la porción central de los Estados Unidos Mexicanos. Esta entidad federativa se distingue en el contexto nacional por un crecimiento demográfico e industrial importante, situación que se presenta especialmente en la cabecera estatal. No obstante y a pesar de sus atributos naturales variados y abundantes que incluyen zonas desérticas, esteparias, bosque tropical perenifolio y otras asociaciones vegetales de trascen- dental importancia que complementan atractivos naturales idóneos para el aprovechamiento económico, aún al inicio del siglo xxi la actividad turística ha tenido una dinámica marginal ajena a las directrices y políticas de planificación rectoras en el estado de San Luis Potosí, lo que muestra que las condiciones naturales no han sido, por sí solas, un detonante significativo que incentive el crecimiento de la actividad.En las condiciones anteriores, el Plan Estatal de Desarrollo de San Luis Potosí 2003- 2009 evidencia un incipiente interés gubernamental en el último trienio por impulsar la articulación de ejes y zonas que integren al ecoturismo como una actividad complementaria de la economía regional. Lo anterior solo será posible mediante la creación de instrumentos científicamente sustentados que mensuren las potencialidades y condiciones del elemento natural, revelado en este trabajo a través de métodos geográficos cuantitativos apoyados en análisis de sistemas de información geográfica.Los resultados que se proponen obtener en esta investigación forman parte del proyecto titulado «Potencial natural y socioeconómico para el desarrollo del ecoturismo en el estado de San Luis Potosí, México», financiado por un fondo concurrente del Consejo Nacional deCiencia y Tecnología y el Gobierno del Estado de San Luis Potosí.

The Hispanic phenomenon of the pronunciamiento, particularly prominent in nineteenth-century Mexico, is just one example of an insurrectionary political act that has contributed to the traditional portrait of chaos and disorder that has tainted much of our interpretation of the country‟s socio-political history. Once considered to be a violent, non-ideological, praetorian military act, recent studies reveal that the pronunciamiento was primarily a written petition that sought to further political proposals or address particular grievances through negotiation (albeit often backed by the threat of force). Although the military were largely the most visible leaders of the pronunciamiento, a plethora of political and civilian actors and interest groups partook in the practice with the intention of having their grievances/demands attended to by the national government. As well as being viewed as one of the causes of chronic instability, the pronunciamiento was also the primary mechanism employed to bring about tangible political changes throughout the country. At the local level of San Luis Potosí, the pronunciamiento seed also germinated and was used by all political groups and factions in their negotiations with local and national authorities alike. Local interests were often at the heart of these negotiations and so dictated the nature of the pronunciamiento in San Luis Potosí. This dissertation will explore and analyse the pronunciamiento practice, its origins, dynamics and nature, from the regional perspective of San Luis Potosí. Bearing in mind that the pronunciamiento was borne out of, and operated in a specific socio-political-economic context of constitutional disarray and transition, its analysis will also further our understanding of the broader socio-political culture not only of San Luis Potosí, but of Mexico in general. This in turn will contribute to the acknowledged need for reinterpretation and revaluation of the tumultuous period of early nineteenth-century Mexico. It will expose the period as an age of democratic revolutions; of intense political debate between emergent political groups and factions, who increasingly used the pronunciamiento to further an ideological stance, represent a spectrum of interests and force some kind of political change both at a national and regional level when all other constitutional options had been exhausted.