The IBGE is the Brazilian Geography and Statistics Institute , well you just need to find the the topography mark in the ground and the number on it you will need to use.
Find the final tens of the numbering written in the IBGE topography marking. This is the start point.
This tens indicates the number of meters you need to walk to the SE southeast direction where is the cache.
No ponto de partida, Ache a dezena final da numeração escrita na marcação da topografia do IBGE.
Essa dezena indica o numero de metros em direção SE sudeste que voce tera que caminhar para achar o cache desde esse mesmo ponto.
The cache is a small pot , can hold small TB.
Good luck!
Well, i will be very happy if you have any suggestion for me