Band o dri brawd o Ros Botwnnog ym Mhenllyn yw Cowbois Rhos Botwnnog. Maent yn arbrofi gyda cherddoriaeth wledig America, gwerin a roc.
Cowbois Rhos Botwnnog are a three piece band of brothers from Rhos Botwnnog in the Llyn Peninsula, North Wales. They experiment with country, folk and rock music.
