Inyo NF allows the use of the Ursack White bag, but not the other less capable Ursack versions. I checked last week at the White Mountain ranger station in Bishop was given the okay to use it anywhere in the Inyo NF, but not in SEKI or Yosemite NP. But I was cautioned to use the Ursack carefully, following the manufacturer's instructions and, if possible, to counter-balance hang the bag from a hefty tree limb.
Last edited by Dustrunner; 06/14/12 07:45 PM.