1 Enoch 67:4

ወየዐጽውዎሙ፡ ለእልክቱ፡ መላእክት፡ እለ፡ አርአይዋ፡ ለዐመፃ፡ ውስተ፡ ይእቲ፡ ቈላ፡ እንተ፡ ትነድድ፡ እንተ፡ አርአየኒ፡ ቀዳሚ፡ እምኄውየ፡ ሄኖክ፡ በዐረብ፡ በኀበ፡ አድባረ፡ ወርቅ፡ ወብሩር፡ ወኀጺን፡ ወነጠብጣብ፡ ወናእክ።

And He will imprison those angels, who have shown unrighteousness, in that burning valley which my grandfather Enoch had formerly shown to me in the west among the mountains of gold and silver and iron and soft metal and tin.