The wavy lines in the base, alternately silver and blue, are the heraldic equivalent of water, and represent a significant geographical feature of the diocese, where water is a highway uniting the parishes and missions. Above the water, a blue field is charged with seven golden stars arranged to form the constellation Ursa Major, the Great Bear, which is the most conspicuous constellation in the northern sky. Contained in the constellation are the Dipper with its two pointers, pointing to Polaris, the North Star, which is the eighth star on the shield.
The North Star is the constant guide of the mariner, explorer, hunter, trapper, prospector, woodsman and surveyor, those hardy souls who have done so much for Alaska in a material way. Even more, the North Star on the shield of the Diocese represents the Blessed Virgin, the ever constant guide of spiritual mariners, under the title of “Stella Maris.” To pay additional honor to Mary, as well as to commemorate the Cathedral church of the diocese, a silver crescent is included in the shield. Since the crescent is a symbol of Our Lady, this rising quartered and new moon offers a heraldic representation of the Nativity of the Blessed Virgin Mary.