Recycled Christmas Trees Help ZooMontana, Audubon Center With many residents of Yellowstone County getting a real Christmas tree this year, expect a rush to get the trees recycled after the holidays are over. According to a press release from Bright and Beautiful of Billings, you'll now have a way to get rid of your real Christmas tree, while helping keep up our trails, and give many zoo animals a comfortable place to rest. The Christmas Tree Recycling Program will begin December 26, and continue through January 21, offering recycling for any undecorated and unbagged tree. Nine locations will be available for Christmas tree drop off, and they include the following in Billings: