 This study examined the spatial accessibility of screening mammography in Arkansas. It found that women living in rural areas had particularly poor spatial access compared to those living in urban or suburban areas. This suggests that mobile mammography clinics could be used to improve access in rural areas. Additionally, this study highlighted the importance of using optimization models and GIS to analyze healthcare accessibility in rural populations. This article was offered by Sean G. Young, Meganeus, and Sharp F. Malik.