Closing Thanksgiving All Day 10/13 - 10/14 Oct 13 - 14 2019 Closing Thanksgiving All Day 10/13 - 10/14 Branches: Grande Prairie Public Library Description: The Grande Prairie Public Library will be closed Sunday, October 13 and Monday, October 14 for Thanksgiving. GPPL will reopen at 10:00 am on Tuesday, October 15.