Utopia

Utopia is northern lava plain centered around 40° N, 250° W

Utopia Planitia is a huge, ~3300 km diameter basin, part of what’s known as the northern plains.

It has widespread (~375 000 sq km) subsurface water ice deposit in southwestern Utopia Planitia,

Mars North Pole and Utopia Planitia

Viking 2 lander, which touched down at 47.97° N, 225.74° W, on September 3, 1976, depicted a boulder-strewn plain that superficially resembles the Viking 1 landing site in Chryse Planitia

Viking 2 site using the Landers camera #2 looking approximately northeast.

Landing site soil analysis

soil a mixture of about 80% iron-rich clay, about 10% magnesium sulfate, about 5% carbonate and about 5% iron oxides.

The soil resembled those produced from the weathering of basaltic lavas. The tested soil contained abundant silicon and iron, along with significant amounts of magnesium, aluminum, sulfur, calcium, and titanium. Trace elements, strontium and yttrium, were detected.

Potassium was one fifth of the average for the Earth's crust, also some sulfur and chlorine.

Trivia

From StarTrek 'Utopia Planitia Starfleet Yards' is the fictional location for building starship spacecraft.