wheat, and then return in June to allow harvest. Fishing is possible in the water holes. Traditionally, agricultural product was traded once a year in exchange for fabrics. Tourism As the Sahara's highest mountain range, with geothermal features, a distinctive culture, and numerous rock and parietal artworks, the Tibesti has tourism potential. However, tourist accommodations are limited at best. In the early 2010s, the French adventure travel company Point-Afrique financed the repair of the airport at Faya-Largeau, some southeast of the Tibesti, and established direct charter flights between Faya and Marseille. Although the flights mainly brought tourists destined for the Ounianga Lakes UNESCO World Heritage Site, there was considerable hope that they would also open the gates for tourism in the Tibesti. For example, the Chadian government invested in a tourist camp along with walled pavilions in Bardaï. Yet, following the Libyan Crisis and France's intervention in Mali, the French government pressured tour operators to prevent French tourists from venturing into the Sahara, and the flights ended. there are essentially only two tour operators in Chad, run by Chadians and Italians and both based in N'Djamena, which offer all the tours that exist in Chad, including trips to the Tibesti. Tours are typically multi-week affairs, with tourists accommodated in tents. They include exposure to Toubou cultural traditions and to the Tibesti's rock and parietal art. Continuing civil unrest and the presence of landmines pose a danger to tourists, and, despite the occasional tour group, the Tibesti remains one of the most isolated places on Earth. Conservation The resources available for conservation in the Tibesti are limited. In 2006, various non-governmental working groups proposed a protected area to preserve the area's rhim gazelle and Barbary sheep populations. The protected area would be modeled after the Ouadi Rimé-Ouadi Achim Faunal Reserve to the south. However, due to economic and political barriers, the project has not moved beyond the proposal stage. Nevertheless, the establishment of two World Heritage Sites in northern Chad in 2012 and 2016 has renewed hope that a similar feat might be achieved in the Tibesti. Art and literature Rock and parietal art The Tibesti Mountains are renowned for their rock and parietal art. Around 200 engraving sites and 100 painting sites have been identified. Many date as early as the 6th millennium BC, long before the arrival of the Toubou. The art has suffered the effects of time, including