Uranius Patera is a volcano on Mars located in the Tharsis quadrangle

Tharsis quadrangle

The Tharsis quadrangle is one of a series of 30 quadrangle maps of Mars used by the United States Geological Survey Astrogeology Research Program. The Tharsis quadrangle is also referred to as MC-9 ....

. It is about 3 kilometers high and it has shallow slopes. It belongs to Uranius group of volcanoes

Uranius group of volcanoes

The Uranius group of volcanoes is located on planet Mars in the northeast part of Tharsis and include Uranius Patera, Ceraunius Tholus, and Uranius Tholus. They are dated to the Late Hesperian Epoch and are part of earliest phases of volcanism in the Tharsis province. All three volcanoes are...

 in the Tharsis

Tharsis

The Tharsis region on Mars is a vast volcanic plateau centered near the equator in Mars’ western hemisphere. The region is home to the largest volcanoes in the Solar System, including the three enormous shield volcanoes Arsia Mons, Pavonis Mons, and Ascraeus Mons, which are collectively known as...

 area.
Side of Uranius Patera consist of radial lava flows with few low shields with the large caldera (90 x 65 km) which is elongated in the southwestern direction. The surrounding plains are younger and part of the Tharsis Montes Formation in Amazonian epoch .