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This image of the southern rim of Cerulli Crater shows numerous small channel dissecting the rim..

Source: THEMIS - Mars Odyssey Mission

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This image shows a portion of the southern flank of Olympus Mons.

Source: THEMIS - Mars Odyssey Mission

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This unnamed crater near Timoshenko Crater has been breached by a channel.

Source: THEMIS - Mars Odyssey Mission

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The depressions in the rim of this unnamed crater in Terra Sabaea are being filled with new material. The surface texture of the new material is different from the surrounding older material.

Source: THEMIS - Mars Odyssey Mission

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This ridged and pockmarked surface is located west of Phlegra Montes in the northern plains.

Source: THEMIS - Mars Odyssey Mission

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This image shows a small portion of the Martian dichotomy near Lucus Planum. The ancient crater at the right center of the images has been extensively modified by the fracturing.

Source: THEMIS - Mars Odyssey Mission

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This image shows part of one of the many mesas that comprise Deuteronilus Mensae as well as the surrounding debris slope and plains surface. The surface texture/patterns indicate that subsurface volitiles may exist in this region.

Source: THEMIS - Mars Odyssey Mission

This image shows a small portion of the Martian dichotomy near Lucus Planum. The ancient crater at the right center of the images has been extensively modified by the fracturing.[/font]

Looks like dried mud.

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This image shows part of Utopia Plainitia. The dark markings are dust devil tracks and possibly fractures.

Source: THEMIS - Mars Odyssey Mission

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These channels and channel-like collapse features are located on the northeastern flank of Ascraeus Mons.

Source: THEMIS - Mars Odyssey Mission

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The texture/pattern on the floor of this unnamed crater in Terra Sabaea indicates that volitiles make up a portion of the material filling the crater.

Source: THEMIS - Mars Odyssey Mission

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This image from the Deuteronilus Mensae region shows an interesting portion of the martian dichotomy. It appears that the crater in the upper part of the image is being re-exposed after burial. The cliff margin with the mulitude of small channels overlies the ejecta of the crater.

Source: THEMIS - Mars Odyssey Mission

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This depression within Cassini Crater contains several slope streaks. The darkest streaks are assumed to be younger than the lighter streaks.

Source: THEMIS - Mars Odyssey Mission

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The windstreaks in this image are located on Tharsis volcanic flows northeast of Olympus Mons.

Source: THEMIS - Mars Odyssey Mission

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The windstreaks in this image are located on Tharsis volcanic flows northeast of Olympus Mons.

Source: THEMIS - Mars Odyssey Mission

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This image shows one of the major tributaries of Shalbatana Vallis.

Source: THEMIS - Mars Odyssey Mission

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The fractures and channel-like features in this image are located in the Elysium Volcanic complex.

Source: THEMIS - Mars Odyssey Mission

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Detailed information on this image is available at the THEMIS Data Releases website.

Streamlined features are visible in this image of Hrad Vallis.

Source: THEMIS - Mars Odyssey Mission

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Detailed information on this image is available at the THEMIS Data Releases website.

This faulted and eroded surface is part of Acheron Fossae.

Source: THEMIS - Mars Odyssey Mission

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Detailed information on this image is available at the THEMIS Data Releases website.

A portion of Auqakuh Vallis is shown in this image.

Source: THEMIS - Mars Odyssey Mission

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Detailed information on this image is available at the THEMIS Data Releases website.

These large landslides are located in Ganges Chasma.

Source: THEMIS - Mars Odyssey Mission

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Detailed information on this image is available at the THEMIS Data Releases website.

This image shows slope streaks on a small hill. The hill is near an unnamed crater at the south end of Phlegra Montes.

Source: THEMIS - Mars Odyssey Mission

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Detailed information on this image is available at the THEMIS Data Releases website.

This image of Tiu Vallis shows a landslide that crossed the entire width of the channel.

Source: THEMIS - Mars Odyssey Mission

All these photos show evidence of water..so where did it go?

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Detailed information on this image is available at the THEMIS Data Releases website.
The ridges in this region of Terra Sabaea are the remnants of a resistant material the filled fractures in a less resistant layer. The less resistant material has been eroded away.

Source: THEMIS - Mars Odyssey Mission

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The ridges in this region of Terra Sabaea are the remnants of a resistant material the filled fractures in a less resistant layer. The less resistant material has been eroded away.

Source: THEMIS - Mars Odyssey Mission

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Detailed information on this image is available at the THEMIS Data Releases website.

This unnamed crater east of Herschel Crater contains both a large landslide and a field of small dark sand dunes.

Source: THEMIS - Mars Odyssey Mission

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Multiple slope streaks are visible on the rim of Henry Crater.

Source: THEMIS - Mars Odyssey Mission

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These dark sand dunes are located in an unnamed crater in Noachis Terra.

Source: THEMIS - Mars Odyssey Mission

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These sand dunes are located on the floor of an unnamed crater west of Hellas Basin.

Source: THEMIS - Mars Odyssey Mission

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This images shows a wind eroded portion of Lycus Sulci, a region of ridges and valleys west of Olympus Mons.

Source: THEMIS - Mars Odyssey Mission

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These lava flows surrounding a depression in the plains are located in the Cerberus region of Elysium Planitia.

Source: THEMIS - Mars Odyssey Mission

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Detailed information on this image is available at the THEMIS Data Releases website.

This images shows part of the northeastern flank and margin of Pavonis Mons. Collapse features are common on the the margins of the Tharsis volcanoes along the vent axis.

Source: THEMIS - Mars Odyssey Mission

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This complex region of lava flows and fracturing is located at the eastern margin of the Tharsis Volcanic Complex.

Source: THEMIS - Mars Odyssey Mission

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These channels in Utopia Planitia are called Hephaestus Fossae.

Source: THEMIS - Mars Odyssey Mission

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An extensive field of small, dark dunes in located on the floor of the unnamed crater in Arabia Terra.

Source: THEMIS - Mars Odyssey Mission

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This small field of dark dunes is located on the floor of Bamburg Crater.

Source: THEMIS - Mars Odyssey Mission

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Your eyes do not deceive you, this is a positive relief featuer - a ridge. However, it does have a channel in its past. This type of feature is termed an inverted channel. One theory of how these features form is that rocky debris accumulates in channels of flowing water beneath glaciers. When the glacial ice is all removed the rocky channel bottom is left as a positive relief feature. On Earth such features are called eskers.

Source: THEMIS - Mars Odyssey Mission

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This unnamed northern crater contains several dune fields. Within the central peak region (left side of image) there is material with a "swirled" surface pattern/texture. This type of texture indicates that volitiles may exist within the material.

Source: THEMIS - Mars Odyssey Mission

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