By: Neal-Spence
Image: NASA / JPL-Caltech / UoArizona ⧉
License: Copyright, All Rights Reserved

Uploaded: 7 Mar 2026
Last Updated: 7 Mar 2026

7.41 gigapixels
194,556 x 38,086 pixels
648.5 in X 127.0 in at 300dpi

"A 4-panel HiRISE mosaic of the Northern Mid-Latitudes, this area is known as Hrad Vallis" "Mosaic of Hrad Vallis: A study in Martian fluviovolcanic interaction. The hydrothermal deposits shown here represent high-interest targets for astrobiology, analogous to microbial 'hot spots' on Earth. Timeline: Mars Year 32 (Late Spring – Early Autumn) Processed manually from 16-bit PDS data and stitched using Photoshop by : Neal Spence Original data credit : NASA / JPL-Caltech / UoArizona Full Resolution Images used : https://www.uahirise.org/ESP_034031_2145 https://www.uahirise.org/ESP_035376_2145 https://www.uahirise.org/PSP_010309_2145 https://www.uahirise.org/ESP_035587_2140 Technical Specifications: Native Resolution: 29.6cm/pixel Output Resolution: 14.8cm/pixel (Super-sampled 7.41 Gigapixel mosaic) Physical Coverage: 5.64km x 28.79km (162.3km of Hrad Vallis) Geology: Detailed survey of fluviovolcanic channels & potential hydrothermal deposits The Surface mapped here is roughly the same surface area as the island of Staten Island, NY; or the city of Oxford, UK.