During systematic camera trapping surveys conducted for jaguars, we collected photographs of giant armadillos at three of four dry forest (Chaco and Chiquitano) sites surveyed in eastern lowland Bolivia, thus extending the documented distribution of the species. The cumulative 30 camera trap records with time information suggest a highly nocturnal activity pattern. We identified individu als according to the distinct scale patterns, particularly the dividing line between dark and light scales on the carapace and hind legs. We estimated crude densities, ranging from 1-16 individuals/100 km 2 across sites and surveys, by dividing the number of individuals by the area enclosed by the camera traps. At one site the number of captures and recaptures was sufficient to estimate abundance us ing the software Capture, together with a survey area that includes a buffer area around the camera traps equivalent to half the mean maximum distance covered by individual animals observed at more than one camera trap location. Together these estimates suggest a population density of 5.77-6.28/100 km 2 for this site. Given the vast area (11,500 km 2 ) of similar habitat protected within the Kaa-Iya National Park, and preliminary evidence of the species in neighboring protected areas, the dry forests of eastern Santa Cruz may offer a unique stronghold for the long-term conservation of the species.