Radian

"...And so the sun god Hermera sent down a ray a light, to guide us to our new home, and at its base, we built our city, Radian." 
-Founding myth of Radian
Radian is a city in the US state of Wyoming, known to be the home of the Lax'rayy, the Sun Elves. Founded in 2038 by former US president Henry Mark Jemison, the city is a democratic councilship located at the foot of Sugarloaf Mountain, west of the state capital of Cheyenne. Famous for its blend of futuristic and fantastic architecture, Radian is constructed in a mixture of the 2040s Solarpunk style, and the Sun Elf style. 
Radian is also a rapidly growing city, and its initial population of ~30,000 Sun Elves has since swelled to 200,000, surpassing Cheyenne to become Wyoming's largest city in 2068. This large influx of people -along with the rapidly growing Sun Elf population- has resulted in it becoming a major center of commerce and culture for underworld populations. 
Radian was also the headquarters of Wyoming's widely-beloved Cheyenne Peppers Guild, from their relocation in 2069 to the Casper Massacre in 2118, after which they were absorbed by Colorado's Sol Invictus Guild.