Enigmatic Channels on the Floor of Mangala Valles
Enigmatic Channels on the Floor of Mangala Valles
ESP_033264_1640  Science Theme: Volcanic Processes
This particular area, called Mangala Valles and located near the Tharsis region, may be an example of the action of liquid water in the ancient Martian past.

It’s possible that the wide and short channels visible here may have formed by the motion of groundwater, similar to way channels like these form on Earth.

Written by: HiRISE Science Team (audio by Tre Gibbs)  (30 October 2013)

This is a stereo pair with ESP_033053_1640.
Acquisition date
31 August 2013

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
261.1 km (162.3 miles)

Original image scale range
26.6 cm/pixel (with 1 x 1 binning) so objects ~80 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
44°, with the Sun about 46° above the horizon

Solar longitude
15.1°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  33.2°
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

Black and white
map-projected   (599MB)

IRB color
map-projected   (330MB)

Black and white
map-projected  (276MB)
non-map           (338MB)

IRB color
map projected  (103MB)
non-map           (277MB)

Merged IRB
map projected  (167MB)

Merged RGB
map-projected  (162MB)

RGB color
non map           (272MB)
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona

NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.