RArcInfo is a package for the R statistical program to import Arc/Info V7.x binary coverages. It is based on the library Avcelib written by Daniel Morissette. Currently, RArcInfo supports most of the file formats stored by these type of coverages. The geographical information (arcs, polygons, topological relationships, etc.) are stored using lists, but all the tables containing related information are imported into a data frame. Once the desired data are imported, the user can draw maps, even filling the polygons according to the value of a given covariate. Although R is not designed for heavy G.I.S. work, this package is very helpful to work with binary coverages inside R.