Hopanoids, including 2-alpha-methylhopanes from photosynthetic bacteria (cyanobacteria), were discovered by Roger Summons and colleagues as molecular fossils preserved in 2.7 Gya shales from the Pilbara, Australia.
In 2007 it hosted the 87th annual Sir Thomas Lipton Inter-Club Challenge sailboat race, an Olympic style GYA racing event for sailors of Flying Scot dinghys.
Two final episode of flooding from the Echus Chasma region to the south occurred in Kasei Valles during Amazonian times (<1.8 Gya).