Caieiras is a municipality

Municipality

A municipality is essentially an urban administrative division having corporate status and usually powers of self-government. It can also be used to mean the governing body of a municipality. A municipality is a general-purpose administrative subdivision, as opposed to a special-purpose district...

 in the state of São Paulo

São Paulo (state)

São Paulo is a state in Brazil. It is the major industrial and economic powerhouse of the Brazilian economy. Named after Saint Paul, São Paulo has the largest population, industrial complex, and economic production in the country. It is the richest state in Brazil...

 in Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

. Due to the municipality's large reforestation area, it is known as the "City of the Pines".

The municipality is served by CPTM Line 7 (Ruby)

Line 7 (CPTM)

Line 7 is a line of the Companhia Paulista de Trens Metropolitanos commuter rail system in São Paulo, Brazil. -External links:...

.

Economy

The economy of the city is based on paper industry. Most of the territory of the town consists of reforesting areas belonging to Companhia Melhoramentos de São Paulo.