How to use "mammoth" in a sentence

A lavish use of blue velvet, dark leather, crystal chandeliers, and thick blue carpet, plus an excellent sense of dramatic lighting, gave the mammoth chamber some of the feeling of a cozy cabaret in spite of its size.

The chopper hugged the valley floor, streaking northward, ten feet above an ice-blocked river, still forced to make its way through a snowfall that nearly blinded them, but sheltered from the worst of the storm's turbulence by the walls of mammoth evergreens that flanked the river