We've provided maps of all the major towns and cities and various other regions. More detailed maps are surprisingly hard to get hold of outside Brazil, and are rarely very good: there are plenty of maps of South America, but the only widely available one that is specifically of Brazil is the Bartholomew Brazil & Bolivia (1:5,000,000) which is not very easy to read. Much better are the six regional maps in the Mapa Rodoviário Touring series (1:2,500,000), which clearly mark all the major routes, although these, even in Brazil, are difficult to find. In Brazil, a useful compendium of city maps and main road networks is published by Guias Quatro Rodas, a Brazilian motoring organization, which also has guides to Rio, São Paulo and other cities, states and regions. These are easy to find in bookstores, newsagents and magazine stalls. Very clear maps of individual states are published by Polimapas, and are usually available on the spot. At 1:1,000,000 these are the largest scale of all, though they actually have less detail than some of the above-mentioned. Topographical and hiking maps are difficult to find, though very occasionally they are available from municipal tourist offices or national parks in Brazil, or from local trekking equipment shops or tour operators.