Toronto: Doubleday Canada, 1980. Quarto, blue boards, endpaper maps. xi, 175pp + colour photos. Many b&w photos and line drawings in text. Indexed. Slight rubbing at foot of spine, else fine in fine jacket, no owner nam3es. "The unique environment of North America's highest mountain range." Ecological focus. Note: 1.5 kg parcel, extra postage may be required.