▁ ▁Then ▁most ▁of ▁them ▁are ▁turned ▁loose ▁again , ▁to ▁w ander ▁Ant el ope ▁Island ▁but ▁approximately ▁ 1 0 0 ▁b ison ▁are ▁sold ▁at ▁an ▁au ction , ▁and ▁hun ters ▁are ▁allowed ▁to ▁kill ▁a ▁half ▁dozen ▁b ison . ▁ ▁This ▁hunting ▁takes ▁place ▁on ▁Ant el ope ▁Island ▁in ▁December ▁each ▁year . ▁Fe es ▁from ▁the ▁hun ters ▁are ▁used ▁to ▁improve ▁Ant el ope ▁Island ▁State ▁Park ▁and ▁to ▁help ▁maintain ▁the ▁b ison ▁her d . ▁ ▁Hun ting ▁is ▁also ▁allowed ▁every ▁year ▁in ▁the ▁Henry ▁Mountains ▁b ison ▁her d ▁in ▁Ut ah . ▁ ▁The ▁Henry ▁Mountains ▁her d ▁has ▁sometimes ▁number ed ▁up ▁to ▁ 5 0 0 ▁individuals ▁but ▁the ▁Ut ah ▁Division ▁of ▁Wild life ▁Resources ▁has ▁determined ▁that ▁the ▁carrying ▁capacity ▁for ▁the ▁Henry ▁Mountains ▁b ison ▁her d ▁is ▁ 3 2 5 ▁individuals . ▁ ▁Some ▁of ▁the ▁extra ▁individuals ▁have ▁been ▁trans pl anted , ▁but ▁most ▁of ▁them ▁are ▁not ▁trans pl anted ▁or ▁sold , ▁so ▁hunting ▁is ▁the ▁major ▁tool ▁used ▁to ▁control ▁their ▁population . ▁ ▁" In ▁ 2 0 0 9 , ▁ 1 4 6 ▁public ▁once - in - a - l if etime ▁Henry ▁Mountain ▁b ison ▁hunting ▁perm its ▁were ▁issued ." ▁ ▁Most ▁years , ▁ 5 0 ▁to ▁ 1 0 0 ▁lic enses ▁are ▁issued ▁to ▁h unt ▁b ison ▁in ▁the ▁Henry ▁Mountains . ▁ ▁Al aska ▁B ison