Schematic representation of two possible configurations for hydrothermal activity within the LAGF: 1) Meteoric water infiltrates and is heated in the vicinity of the Dama Ale volcano. Fluids migrate eastward along ESE-striking fault corridors until they intersect N-striking faults acting as barriers that prevent further eastward migration. Upflow to the surface occurs along structurally favorable zones with enhanced vertical permeability, such as fault intersections and relay zones. 2) Meteoric water infiltrates south of the GG through major structural features. It is heated by conductive heat flow related to crustal thinning, and then channeled northwards along the continuation of the E-WFB, acting as vertical drains. Fluids rise to the surface where these structures intersect the ESE-striking fault corridors in the LAGF area.