Saturday, August 22, 9:00-11:00 am. Join the Creation Care Team for an Eco Pilgrimage to the Rocky Flats National Wildlife Refuge. This 5,237-acre site was established in 2007 to protect some of the last remaining xeric tallgrass prairies in North America, and the last remaining tall upland shrubland habitat in the world. There are 630 species of plants that provide habitat protection for over 239 wildlife species.