I drew any an bull permit DM 210 for the Twentymile River/Placer River areas near Portage Glacier. Its been years since I've been on those rivers and I understand that there is not much water to navigate a river boat up . I'm told its mainly airboats and canoes used now. Anyone with any experience in this hunt area recently? Can a river boat get up 20 Mile or Placer? And is there anyone or a business that does for a drop off/pick up only via AIR BOAT that I could possibly hire? Any help/ideas/information is greatly appreciated.