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Discussion from McGrain and Currens (1978) Boyle County, in central Kentucky, contains a diverse and varied topography. Straddling the Bluegrass and Mississippian Plateaus Regions, the county contains some striking topographic contrasts. Northern Boyle County lies in parts of both the Outer and Inner Bluegrass Regions. In the northeast, the topography is gently rolling, with local reliefs of 60 to 100 feet, except along the limestone-walled valley of Dix River, where the local relief may be as much as 230 feet. The divide between the drainage basins of the Kentucky River on the east and the Salt and Rolling Fork Rivers on the west has elevations as great as 1,040 feet. The most striking topographic feature in Boyle County is the Muldraugh (Highland Rim) Escarpment. In Boyle County it is a north-facing cuesta rising more than 300 feet. It starts at Junction City and extends westward across the county parallel to and south of Ky. 34. The dissected outer edge of the escarpment contains a number of isolated hills or knobs, part of the picturesque "knobs" country of central and northern Kentucky. The highest elevations in the county are found here, including Parksville Knob, at 1,364 feet the highest point in the county. The upland behind the escarpment is well dissected by North Rolling Fork and its tributaries. The lowest elevation in Boyle County is 740 feet, where North Rolling Fork leaves the southwest corner of the county. Long, irregular ridges, many with elevations of 1,200 feet or more, characterize the upland. The lower slopes of many of these ridges have a peculiar hummocky topography, reflecting the unstable condition of the soils derived from soft clay shales in the area. The elevation at Danville, at the courthouse, is 989 feet. The elevation of Herrington Lake at full pool is 750 feet; Junction City, 986 feet; Mitchellsburg, 990 feet; Needmore, 935 feet; Parksville, 1,080 feet; Perryville, 851 feet; and Shelby City, 995 feet. The 7.5-minute topographic quadrangle maps that cover the county are shown, by name and by index code (Kentucky Natural Resources and Environmental Protection Cabinet) on the index map. Previous--Next--Back to "Groundwater Resources in Kentucky"
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