Section 13.1108 - Alsek Corridor(a) A permit is required to enter the Alsek Corridor. A map showing the boundaries of the Alsek Corridor is available from the park visitor center. Failure to obtain a permit is prohibited.(b) Group size is limited to 15 persons except that specific concession permit holders are limited to 25 persons.(c) Camping is prohibited for more than one night each at Walker Glacier, Alsek Spit and Gateway Knob plus one additional night at any one of these three locations. Camping is prohibited for more than four nights total among the three locations.(d) Except at Glacier Bay National Preserve, campfires must be lighted and maintained inside a fire pan within 1/2 mile of the Alsek River.(e) Disposal of solid human body waste within the Alsek Corridor is prohibited. This waste must be carried to and disposed of at the NPS-designated facility. 73 FR 3186 , Jan. 17, 2008