After extensive coverage in exhaustive flights, this book —predominantly photographic and with great aesthetic sense— records from the air the rich natural diversity of the territory of the department of Casanare, where its 19 municipal capitals are also located. It is a fascinating aerial journey through the four clearly differentiated regions of this territory: the mountain foothills starting from the Cocuy snow-capped peak; the Llanos foothills with their beautiful geological formations, where it can be seen how the eastern mountain range extends into the plains; and its two types of plains —alluvial and aeolian— which make up most of the department. In the 250 pages that make it up, this valuable document allows appreciating, in all the splendor of the rainy season, the geographical, vegetal, water, urban, and economic features that characterize this thriving region of the country. Sponsored by the oil company Perenco, which celebrates 40 years of operations in the department, this book constitutes a splendid tribute to the nature of Casanare: its great rivers, its multiple streams, its forest patches, its morichales, its rich flora, its fauna, its indigenous reserves, and its oil and agricultural activities, represented by its extensive rice and oil palm plantations, among others, which promise it a future.