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In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historically using a variety of methods. Traditional definitions require a topographic map to show both ...
Website. www.usgs.gov. The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and ...
State Route 691. Ohio State Route 691 ( SR 691) is a north–south state route in southern Ohio. The entirety of SR 691 is within Athens County. Its southern terminus is at SR 56 about 1.5 miles (2.4 km) northwest of New Marshfield, and its northern terminus is at an interchange with U.S. Route 33 (US 33) and SR 78 in Nelsonville .
State Route 378 (SR 378) is a north–south state highway in the south-central portion of Ohio. SR 378's southern terminus is at SR 243 about 5 miles (8.0 km) south of the unincorporated community of Willow Wood. Its northern terminus is at SR 141 nearly 4 miles (6.4 km) northwest of Willow Wood. Created in the mid-1930s, and existing entirely ...
Topography is a field of geoscience and planetary science and is concerned with local detail in general, including not only relief, but also natural, artificial, and cultural features such as roads, land boundaries, and buildings. [1] In the United States, topography often means specifically relief, even though the USGS topographic maps record ...
State Route 239 Route information Maintained by ODOT Length 1.22 mi (1.96 km) Existed 1924–present Major junctions South end US 52 near West Portsmouth North end SR 73 / SR 104 near West Portsmouth Location Country United States State Ohio Counties Scioto Highway system Ohio State Highway System Interstate US State Scenic ← SR 238 → SR 240 State Route 239 (SR 239) is a short north ...
Some water from the lakes reaches Lake Erie and some flows to the Ohio River. [ 2 ] There is an unincorporated community named Portage Lakes in Summit County , near 41°00′26″N 081°31′37″W / 41.00722°N 81.52694°W / 41.00722; -81.52694 Elevation: 1,053 feet (321 m), [ 3 ] in the
Terrain cartography. USGS topographic map of Stowe, Vermont with contour lines at 20-foot intervals. Terrain cartography or relief mapping is the depiction of the shape of the surface of the Earth on a map, using one or more of several techniques that have been developed. Terrain or relief is an essential aspect of physical geography, and as ...