Barsukov crater (lower left) with Silinka Vallis on Mars.  Viking 1 image from camera B (366S26).  Minus Blue filter was used for this image.  Resolution is about 213 m/pixel.  Rotated so that approximate north is at top.<br><p>Emission Angle: 9.9<br>
Incidence Angle: 64.8<br>
Latitude: 9.5<br>
Longitude: 331.7<br></p>
Phase Angle: 61.5
James Stuby based on NASA image
1980-03-25
<a rel="nofollow" class="external text" href="https://pilot.wr.usgs.gov/">PILOT</a>, Planetary Image Locator Tool, USGS Astrogeology Science Center