Exploring Mars: A Crater Where Water Ran By Robert Burnham, Phil Christensen published 22 June 06 Holden's wide floor has abundant layered sediments, channels, and large piles of debris at canyon mouths. These suggest a long history of deposits by water.
Exploring Mars: Wind-Eroded Sediments in Eastern Meridiani By Robert Burnham, Phil Christensen published 8 June 06
Exploring Mars: Dunes and Ice in Mars' Chasma Boreale By Robert Burnham, Phil Christensen published 1 May 06
