Pronunciation: (REE-choo)
Galactic Region: Perseus Arm
Galactic Branch: Sikhara Branch
Galactic Sector: N4
Star System: Sol
Planet: Terra
Continent: Aimsir
Nations: Yuanen
Related Cities: Gioh, Huang
Related Geography: Muilean river
Land Area: 44,000 square miles
Length: 450 miles north to south
Coordinates: 10° N, 115° W

The Richu mountains lie on the northern end of Yuanen's peninsula and are the source of the Muilean river. They are also home to the river's two cities, Gioh and Huang

• Cougar - On the western face of the mountains
• Hawk - Found throughout the Mountains, domesticated by the inhabitants of the mountain for hunting