“This designation will ensure that even more of the natural landscapes that make this such a distinguished and cherished park will be protected for generations to come,” Hancock said in the designation announcement.

Arts and Venues still owns three other pieces, totaling 76 acres, that Red Rocks advocates told the committee they’d also like to see added to the park. But Gilmore has cited hurdles that include an estate restriction on one and too much distance between some of the parcels and the park.