It seems that rangers can camouflage in the Fortress courtyard.


A mantle of well packed snow cloaks the courtyard, gleaming brightly in the
sunlight. Many tracks lead in all directions. Chill mountain winds swirl
about, trapped by the massive walls. This area of the courtyard is
dominated by a large fountain, glowing faintly and surrounded by a haze of
steam. The courtyard continues to the north, east, south and west.