 This study investigates the use of photogrammetry techniques to create digital surface models, DSMs, from high-resolution satellite imagery, which can be used as an alternative to Ladarin areas without access to it. The DSMs created include heights of surface features, but may have limitations in densely vegetated conditions. The study found that filtering procedures significantly improved the accuracy of the model terrain and that the accuracy of the DSM extracted in leaf-off conditions was comparable to the Ladar Bear Earth DEM. This article was authored by Jessica D. DeWitt, Timothy A. Warner, Peter G. Chirico and others.