10.6084/m9.figshare.5624650.v1 Colin M. Dundas Colin M. Dundas Alfred S. McEwen Alfred S. McEwen Serina Diniega Serina Diniega Candice J. Hansen Candice J. Hansen Shane Byrne Shane Byrne Jim N. McElwaine Jim N. McElwaine The formation of gullies on Mars today Geological Society of London 2017 Raga gully Mars today Gully initiation crater formation Geology 2017-11-22 10:29:18 Figure https://geolsoc.figshare.com/articles/figure/The_formation_of_gullies_on_Mars_today/5624650 Gully initiation in Raga crater (48.1°S, 242.5°E).