A 3D Double Helical Structure of Bolivian flag. The national flag of Bolivia is a tricolor rectangle, with the colors red, yellow and green, in a ratio of 1:1:1, the red on the superior part occupying a third of the flag’s width, yellow in the middle band using the same width, and green in the inferior part. Bolivia is a landlocked country located in central South America. It is a country with the largest geographic extension of Amazonian plains and lowlands, mountains and Chaco with a tropical climate, valleys with a warm climate, as well as being part of the Andes of South America