Millboro serves as the central settlement point in this section of South Dakota, situated near the winding course of the Keya Paha River. The geography is defined by a series of drainages, including Lost Cr, Willow Cr, and Cottonwood Cr, which carve through the plains of t96n r77w and t95n r77w. A strictly organized grid of rural roads, such as 310th Ave and 300th St, facilitates movement across the township sections. This landscape reflects the enduring ranching and agricultural patterns of Tripp County, where the topography dictates the placement of crossroads and homesteads. The intersection of Browns Rd and 303rd St in the southwest corner highlights the remote connectivity characteristic of the region, while the meandering river provides the primary natural break in the surveyed terrain.
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1950 · Norden
USGS Topo · 1:62,500
1952 · Norden
USGS Topo · 1:62,500
1955 · Martin
USGS Topo · 1:250,000
1955 · Mitchell
USGS Topo · 1:250,000
1955 · O'Neill
USGS Topo · 1:250,000
1957 · Valentine
USGS Topo · 1:250,000
1958 · Martin
USGS Topo · 1:250,000
1959 · Valentine
USGS Topo · 1:250,000
1959 · O'Neill
USGS Topo · 1:250,000
1959 · Mitchell
USGS Topo · 1:250,000