This ORANGE cache is located at a formerly seldom used scenic over look that as of August 2014 has been rebuilt as a parking area and access to the Evans Creek Preserve. The rebuild has made this area more likely to have muggles than previously.
Inside, you'll find a number of ORANGE popsicle sticks in the log bag which contain a part of the coordinates for the final Rainbow cache. Take one! The same numbers can also be found on the logbook cover and written inside the cache lid.
"The colour orange occurs between red and yellow in the visible spectrum at a wavelength of about 585–620 nm, and has a hue of 30° in HSV colour space. It is numerically halfway between red and yellow in a gamma-compressed RGB colour space, the expression of which is the RGB colour wheel. The complementary colour of orange is azure. Orange pigments are largely in the ochre or cadmium families, and absorb mostly blue light."
Source: Wikipedia