The network of missions founded under the Dominicans in the latter part of the eighteenth century in northern Baja California estab- lished there a new and distinct culture landscape. Although at the very doorway of Alta California, these missions have remained almost un- known. A geographic analysis of them has not heretofore been at- tempted, and history has so greatly neglected them that the very exist- ence of the last two missions has been overlooked or questioned. The present study, based upon field work from 1925 to 1929 and upon such written knowledge as is available, delineates this almost forgotten scene of activity. This title was originally published in 1935.Many titles in the Voices Revived program are also newly available as ebooks, offered at a discounted price to support wider access to scholarly work.