| Description | Criteria adopted as pilot site of specific area suitable for a Geopark | ||
| Catégorie UICN | II (National Park) | Existing infrastructure | |
| Creation | 19th July1962 | ||
| General geography | Locality | 29 km NNW Ranohira, approximately 700 km southwest of Antananarivo | |
| District | Ihosy | ||
| Region | Ihorombe | ||
| Country | Madagascar | ||
| Primary administrative | Toliara | ||
| Latitude | −22.31614 | ||
| Longitude | 45.29625 | ||
| Elevation | 514 m to 1268 m | ||
| Area | 86,570 Ha; average length of 59 kilometres; and an average width of 22 kilometres | ||
| Climate | Dry tropical | Promoting geotourism for a better community and better life, i.e. fight against drought and low income because of dry climate | |
| Mean temperature: 17˚C in June and 25˚C in February ( warm temperature) | |||
| Low Level of Socio-Economic Development | |||
| Geology | Sedimentary rock | Sandstone of Isalo range prominent western skyline, dissected cuesta with flat-topped mountains, scattered in an intricate maze of valleys | Potential geoconservation occurring in the area: ―Geosites ―Paleosites ―Minerals and gemstones |
| Basin | Southwest of Morondava Basin | ||
| Geologic -tectonic | Geodynamic model for the early and late Karoo rifting and the Mesozoic plate drift of Madagascar | ||
| Mineral and gemstone | Saphir, corundum | ||
| Landscapes | Big savannas, gallery forests | ||
| Natural geological shape that make the famous Isalo (the Boot, the Queen of Isalo, the Wolf and the Tsingy of Isalo…) | |||
| Canyon; karstic; desertic | |||
| Waterfalls, lakes, natural swimming pool | |||
| Fauna | Strong majority of the endemic species: ―77 species of birds live in Isalo among which the Pseudocossyphus bensoni, an endemic species of Madagascar that is well protected ―14 species of nocturnal lemurs, 8 of which are introduced and 7 endemic to Madagascar ―Reptilian, amphibian, carnivores, insectivorous and gnawing | Specially adapted fauna and flora and its links to geology | |
| Flora | More than 400 floristic species Endemic to Madagascar like the Pachypodium rosulatum, family of the Apocynaceaes, the Catharantus ovalis a medicinal plant that isn’t found anywhere else in the world but in the Ihorombe and on the plain of the Zomandao The savanna of the Isalo is colonized by typical palms of this region: the Bismarkia nobilis “Satrana” that resists fire | ||
| Cultural sites | Palace wall, the royal bath, the royal tombs as well as traditional Bara tombs Sacrifial rites ( prayer joro and Tsipirano) “Bilo” ritual exorcism Legend records | Density of cultural sites | |