Iowa freshman and member of the Chinese in Iowa City group Rui Zhang clears brush during an Iowa River Trail Cleanup session on Sunday, October 19, 2014. Participants worked along the trail and the east bank of the Iowa River to remove invasive plant species, woody debris, and trash. A similar opportunity to cleanup the trail will occur on October 26 from 12-3pm beginning at Napoleon Lane. (Justin Torner/Freelance for the Gazette)