Closing Thanksgiving All Day 10/7 - 10/8 Oct 7 - 8 2018 Closing Thanksgiving All Day 10/7 - 10/8 Branches: Grande Prairie Public Library Description: The Grande Prairie Public Library will be closed Sunday, October 7 and Monday, October 8 for Thanksgiving. GPPL will reopen at 10:00 am on Tuesday, October 9.