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Ohio River Navigation Charts. Cairo, Illinois to Foster, Kentucky. JUNE 2010. NAVIGATION CHARTS AND NOTICES. Navigation charts for the OHIO RIVER, within the limits of the LOUISVILLE...
Measure Distance on a Military Map. A graphic scale is a ruler printed on the map and is used to convert distances on the map to actual ground distances. The graphic scale is divided into two parts. To the right of the zero, the scale is marked in full units of measure and is called the primary scale.
Calculate the straight line distance (as the crow flies) between cities or any two points on earth. Use your location to know any distance from where you are.
In the administration of laws enacted by Congress for the protection and preservation of navigation and the navigable waters of the United States, the U.S. Army Corps of Engineers exercises...
Find local businesses, view maps and get driving directions in Google Maps.
1. Identify the scale of the map. The map scale is the ratio (1:50,000) of the distance on map (1 inch) relative to the distance on the ground (usually 50,000 inches). 2. Convert a straight-line map distance to miles, meters, or yards using the map's bar scale (Figure 071-329-1008-1). Figure 1. Bar scales.
river from just above Fairmont, West Virginia to the Point at Pittsburgh. Six locks and dams on the Ohio River provide navigable waters from the Point at Pittsburgh for 127.2 miles of the river downstream to New Martinsville, West Virginia.
