Celebrate our river as we celebrate the Valley Floor By Hilary Cooper, Special to the Planet May 11, 2019 Every year we celebrate Valley Floor Day on May 9. It is a time to remember the extended community coming together, daring to dream and making the impossible possible. It is an opportunity to reflect on why the Valley Floor is special to you, today. There are so many stories of those who worked at all different levels to keep the Valley Floor open space forever. And there is also the story of a river who patiently and deliberately continues to flow, nourish and sculpt the land through time.