Citation :
« Opening somewhat unpromisingly on the conventional note of the innocent young girl being carried off and placed in an Alaskan dancing hall, [The Romance of Lost Valley] develops later into a series of very beautiful scenic and wild animal shots held together by a sufficient thread of story to keep the interest. It works up to a strong climax of the Western type, full of fights and thrills, and on the whole will be found a very useful item for most programs. »
-- Kinematograph Weekly

Source :
KINEMATOGRAPH WEEKLY. « The Romance of Lost Valley », Kinematograph Weekly, 22 février 1923. [en anglais]