This image captured by NASA 2001 Mars Odyssey spacecraft shows a small portion of Reull Vallis. Reull Vallis is one of the major channels entering eastern Hellas Planitia. Orbit Number: 66499 Latitude: -39.1457 Longitude: 111.246 Instrument: VIS Captured: 2016-12-10 10:06 http://photojournal.jpl.nasa.gov/catalog/PIA21298

This VIS image captured by NASA 2001 Mars Odyssey spacecraft shows a short section of Reull Vallis. Reull Vallis starts in Promethei Terra and ends in Hellas Plainitia. Orbit Number: 67310 Latitude: -40.6272 Longitude: 100.468 Instrument: VIS Captured: 2017-02-15 05:44 https://photojournal.jpl.nasa.gov/catalog/PIA21527

Reull Vallis

Reull Vallis

Reull Vallis

Reull Vallis

Reull Vallis

Reull Vallis

Reull Vallis

Cut Crater in Reull Vallis

Reull Vallis Floor

This VIS image shows a short section of Reull Vallis. Reull Vallis starts in Promethei Terra and empties into Hellas Plainitia. Reull Vallis is 1051km (653 miles) long. Orbit Number: 92169 Latitude: -41.0221 Longitude: 107.284 Instrument: VIS Captured: 2022-09-24 11:18 https://photojournal.jpl.nasa.gov/catalog/PIA25750

This VIS image shows a short section of Reull Vallis. Reull Vallis starts in Promethei Terra and empties into Hellas Plainitia. Reull Vallis is 1051km (653 miles) long. Orbit Number: 92175 Latitude: -38.4731 Longitude: 111.272 Instrument: VIS Captured: 2022-09-24 23:41 https://photojournal.jpl.nasa.gov/catalog/PIA25751

This VIS image shows a short section of Reull Vallis. Reull Vallis starts in Promethei Terra and empties into Hellas Plainitia. On the floor of this channel are ridged and grooved materials that seem to deflect around obstacles. These features are proposed to be ice-rich materials similar to glaciers on Earth. Reull Vallis is 1051km (653 miles) long. Orbit Number: 83958 Latitude: -40.8313 Longitude: 108.188 Instrument: VIS Captured: 2020-11-17 09:14 https://photojournal.jpl.nasa.gov/catalog/PIA24355

This VIS image shows a short section of Reull Vallis. Reull Vallis starts in Promethei Terra and empties into Hellas Plainitia. On the floor of this channel are ridged and grooved materials. In other sections of the channel these materials appear to deflect around obstacles. These features are proposed to be ice-rich materials similar to glaciers on Earth. Reull Vallis is 1051km (653 miles) long. Orbit Number: 91670 Latitude: -42.326 Longitude: 103.002 Instrument: VIS Captured: 2022-08-14 09:12 https://photojournal.jpl.nasa.gov/catalog/PIA25617

This VIS image shows a long section of Reull Vallis. Reull Vallis starts in Promethei Terra and empties into Hellas Plainitia. On the floor of this channel are ridged and grooved materials that seem to deflect around obstacles. These features are proposed to be ice-rich materials similar to glaciers on Earth. Reull Vallis is 1051km (653 miles) long. Orbit Number: 84794 Latitude: -38.2433 Longitude: 111.672 Instrument: VIS Captured: 2021-01-25 05:11 https://photojournal.jpl.nasa.gov/catalog/PIA24716

This VIS image shows a short section of Reull Vallis. Reull Vallis starts in Promethei Terra and empties into Hellas Plainitia. In other regions of the channel the floor contains ridged and grooved materials. In some sections of the channel these materials appear to deflect around obstacles. These features are proposed to be ice-rich materials similar to glaciers on Earth. Reull Vallis is 1051km (653 miles) long. Orbit Number: 92980 Latitude: -39.6307 Longitude: 110.597 Instrument: VIS Captured: 2022-11-30 05:57 https://photojournal.jpl.nasa.gov/catalog/PIA25803

This VIS image shows a short section of Reull Vallis. Reull Vallis starts in Promethei Terra and empties into Hellas Plainitia. On the floor of this channel are ridged and grooved materials. In other sections of the channel these materials appear to deflect around obstacles. These features are proposed to be ice-rich materials similar to glaciers on Earth. Reull Vallis is 1051km (653 miles) long. Orbit Number: 91570 Latitude: -41.1029 Longitude: 108.157 Instrument: VIS Captured: 2022-08-06 03:34 https://photojournal.jpl.nasa.gov/catalog/PIA25606

The floor of Reull Vallis is filled with patterned material. The patterns indicate a volitile such as ice played a part in creating the interesting surface

This image captured by NASA 2001 Mars Odyssey spacecraft shows a small section of Reull Vallis.

The complex channel in this image is a small section of Reull Vallis as seen by NASA 2001 Mars Odyssey spacecraft.

This image captured by NASA 2001 Mars Odyssey spacecraft shows Reull Vallis where it cuts through the rim of Lipik Crater.

This image captured by NASA 2001 Mars Odyssey spacecraft shows a small section of Reull Vallis.

Today's VIS image shows a small section of Reull Vallis. Orbit Number: 59494 Latitude: -39.0839 Longitude: 111.047 Instrument: VIS Captured: 2015-05-13 10:47 http://photojournal.jpl.nasa.gov/catalog/PIA19741

The channels and impact crater rim shown in this THEMIS image provide insight to the forces that have sculpted the surface within the extensive Reull Vallis network. Drainage features and dissected materials observed around and within the impact crater wall demonstrate the erosional and depositional effects of possible fluvial processes. A portion of a possible landslide is also observed within the crater as lobes of material emanate from the crater wall. Reull Vallis is a large and morphologically diverse outflow channel system, and this small view from within demonstrates the combination of mass movement processes that have persisted over an extended time period. http://photojournal.jpl.nasa.gov/catalog/PIA04031

This image captured by NASA 2001 Mars Odyssey spacecraft shows a section of Reull Vallis, a major channel that empties into Hellas Planitia. Orbit Number: 58040 Latitude: -39.0604 Longitude: 111.349 Instrument: VIS Captured: 2015-01-13 17:56 http://images.nasa.gov/#/details-PIA19226.html

The jumbled, chaotic terrain in this NASA Mars Odyssey image may represent a source region for the Reull Vallis, one of the larger channel systems in the southern hemisphere of Mars.

Reull Vallis, located in Mars cratered southern hemisphere, flows for over 1,000 km about 620 miles toward the Hellas basin. This NASA Mars Odyssey image shows a portion of the channel with its enigmatic lineated floor deposits.

The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. This false color image from NASA 2001 Mars Odyssey spacecraft shows part of Reull Vallis.

This image from NASA 2001 Mars Odyssey spacecraft shows several large channels emptying into the eastern Hellas Basin. These southern channels are filled with material today. Whether the material contains volitiles like ice is unknown.