1915 Map of Oswego

The terrain is defined by a network of drainage systems, including Oswego Creek, the East Fork, and Flynn Fork, which carve through the high plains toward the river valley. Distinctive landmarks such as Three Buttes and Elk Prairie provide orientation across the expanse, while the proximity of Boxelder Creek and Wolf Creek highlights the importance of water access for homesteads and grazing. Surveyed just years before the landscape was significantly altered by twentieth-century engineering, this sheet preserves the original topography of the valley and its early rail-and-river infrastructure.