… and maybe you do no need to order a map and you just need a map to consult.
So take a look our DIRECTORY OF FREE MAPS:

Maps of Nigeria – Small GIF maps of Nigeria.

Nigeria and Niger Delta Maps – Various maps of Nigeria, including those showing oil and gas pipelines in the oil-producing Niger Delta and from it to the rest of Nigeria and West African coastal nations.

Perry-Castañeda Library Map Collection – Nigeria Maps– Country, city and thematic maps, along with links to maps on other web sites. From the Perry-Castañeda Library Map Collection at the University of Texas..