Topographic maps and guides for walking in France are available at the online store run by the French Association for Hikers — Fédération Française de la Randonnée Pédestre. The search function enables you to look by region, départment (regions in France) and by other parameters.
Pyrénées-Atlantiques – Western region towards Atlantic Ocean
Hautes-Pyrénées – High Pyrénées in the central mountains
Pyrénées- Orientales – Eastern region near the Mediterranean Sea
Read more about the Pyrénées Mountains at http://www.PyreneesPilgrimage.com