Finding maps locally is hit or miss, with little rhyme or reason as to how useful or effective they will be. I recommend bringing with you whatever maps you think are essential. I always bring the best maps I can find, and I’ve never regretted it.
International Map Trade Association (IMTA)
IMTA members are the companies that create and sell the maps, atlases, globes and map-related products you use.
Tell them where you are going and what you’ll be doing and they’ll give you expert advice on which maps will be best. maplink.com