The erosional processes that formed the distinctive conical rock structures will continue to create new fairy chimneys and rock pillars, however due to the rate of this process, the natural values of the property may still be threatened by unsustainable use. The cultural features, including rock-hewn churches and related cultural structures, mainly at risk of being undermined by erosion and other negative natural processes coupled with mass tourism and development pressures, can never be replaced. threats Some of the churches mentioned by early scholars such as C. Texier, H.G. Rott and Guillaume de Jerphanion are no longer extant.