From Bulbapedia, the community-driven Pokémon encyclopedia.
Town Map (Japanese: タウンマップ Town Map) is an Item card. It was first released as part of the Boundaries Crossed expansion.
| Turn all of your Prize cards face up. (Those Prize cards remain face up for the rest of the game.)
|You may play as many Item cards as you like during your turn (before your attack).
This card was included in the Boundaries Crossed expansion with artwork by Toyste Beach, first released in the Freeze Bolt expansion in Japan. At the beginning of the XY BREAK Series, it was reprinted with new artwork by the same artist in the BREAKthrough expansion, previously released in the Japanese Raichu BREAK Evolution Pack.
This card's effect is similar to that of Here Comes Team Rocket!, previously released in the Team Rocket and EX Team Rocket Returns expansions, with the exception of that it only affects your Prize cards and not your opponent's.
The Town Map is a key item in the Pokémon games that allows players to view the general layout of whatever region they are in.