Corallorhiza maculata var occidentalis forma immaculata
Along Tower Trail road bed in several spots
My best guess is C. maculata.
Corallorhiza maculata, or spotted coralroot, is a North American coralroot orchid flower. Varieties are also known as western coralroot and summer coralroot. It is found from Mexico and Baja California, through California and most of the United States except the Southeast, and across Canada. It grows mostly in montane woodlands.