Narrower Terms (8)

• Guilmette Formation (Nev. and Utah)
• Koipato Formation (Nev.)
• Las Vegas Formation (Nev.)
• Popovich Formation (Nev.)
• Pyramid Formation (Nev.)
• Roberts Mountains Formation (Nev. and Utah)
• Steens Basalt
• Windous Butte Formation (Nev.)