What is "byas-kyuyol"

Byas-Kyuyol is the name of several rural localities in the Sakha Republic, Russia:

• Byas-Kyuyol, Gorny District, Sakha Republic, a selo in Atamaysky Rural Okrug of Gorny District
• Byas-Kyuyol, Olyokminsky District, Sakha Republic, a selo in Charinsky Rural Okrug of Olyokminsky District