This article first presents two brick chamber tombs from the Liao and Jin period (10th to 13th c. ad) recently excavated in the Horqin region (at Dongmengyi in Shuangliao District and at Hamaqin in Changling District), in the western part of Jilin Province, Northeast China. The architectural elements, burial offerings, and human remains are described, and are then compared to published burials from the region. 246 tombs from the Horqin Basin and the surrounding areas have been integrated into a database to allow for quantitative analysis of burial practices. Finally, these data are visualized using geographic information system (GIS) software, to shed light on the spatial distribution of burial types, burial shapes, and mortuary objects similar to those in the Dongmengyi and Hamaqin tombs, allowing us to place them in cultural and spatial context. The use of such regional analysis of mortuary traditions for understanding cultural hybridization and social hierarchy in the Liao-Jin period is also considered.