You are here: Home › Downloads › Maps › Maps Structures Maps Structures The following maps show structures in Blue Gold polders. Khulna Polder 22 Polder 26 Polder 29 Polder 30 Polder 31-part Patuakhali Polder 43/1A Polder 43/2A Polder 43/2B Polder 43/2D Polder 43/2E Polder 43/2F Satkhira Polder 2