Olympica Fossae (Mars)

From albedo feature at 17N, 134W.

Olympica Fossae is a trough in the Tharsis quadrangle of Mars at 25° north latitude and 114.1° west longitude. Parts of the Fossae have been suggested to be both outflow channels as well as channels for flowing lava, routing both molten rock and catastrophic outburst floods of water at different times in Mars' geological past. (wikipedia entry)

A fossa is a long, narrow, shallow depression. On Mars they are named after the nearest named albedo feature on the Schiaparelli or Antoniadi maps.