I use historic remotely sensed data to better understand the changes outlet glaciers flowing through the Transantarctic Mountains, East Antarctica have withstood for the past 40-60 years. I focus on fluctuations in ice surface elevations and basal crevasse initiation at the grounding lines of glaciers. The rendered products from the historic data (e.g. DEMs) combined with 1D modeling constitutes one of the longest timelines ever produced of glacier behavior from remotely sensed data. My research's expanded temporal scale provides new insight into the external forces acting on these glaciers and whether the changes in ice dynamics are due to climate change or natural glaciological processes.