Reviews in Colorado Archaeology (Volume 1) Article 1 (January 1, 2018): Introducing Reviews in Colorado Archaeology, a New Online Journal for Archaeological Research and Cultural Resources Management (Mark D. Mitchell) Article 2 (January 1, 2018): The Role of Horticulture in the Prehistoric Apishapa Region of Southeastern Colorado (Christian J. Zier) Article 3 (January 1, 2018): Recent Developments in Gateway Phase Research (Rand A. Greubel) Article 4 (September 5, 2018): How Agriculture Took Hold in the Mesa Verde Region: A Review of Recent Research on the Late Basketmaker-Early Pueblo Periods (A.D. 500-920) (Richard H. Wilshusen)