{"product_id":"lower-mississippi-chart-63-river-mile-3426-to-3347-us-army-corps-of-engineers-map","title":"Lower Mississippi Chart 63 - River Mile 342.6 to 334.7","description":"The maps presented here were developed with data provided by the U.S. Army Corps of Engineers. The 2015 Navigation Chart has been designed to promote safe navigation for both deep-draft and shallow-draft vessels up and down the Lower Mississippi River, Gulf of Mexico to Ciaro, IL.\n\nInformation denoted on these charts is a general depiction of the waterway and adjacent areas, only; and is not in anywise to be construed as representing precise or accurate dimensions, portrayals, features, or other data. Therefore, anyone utilizing the Lower Mississippi River must exercise caution and acknowledge the ever-present hazards of this natural resource.\n\nThe represented survey information is accurate as of the date of publication or referenced date of source data. Hydrographic survey data is subject to change rapidly due to several factors including but not limited to dredging activity and natural shoaling and scouring processes. The U. S. Army Corps of Engineers accepts no responsibility for changes in the hydrographic conditions which develop after the date of publication.\n\nThe represented river mileage positions were computed as statute mile along the 1962 river thalweg. These river mile positions were set and remain in use today. Therefore these mile markers do not exactly correspond to the current thalweg distances nor to navigational distances as traveled by the mariner; instead, their map positions are to be considered as landmarks and points used for reference purposes.\n\nMariners are warned that logs and other floating debris are constant dangers to navigation. Small craft operators are warned beware of severe water turbulence caused by large vessels traversing narrow channels and are recommended against night travel due to floating obstruction hazards.","brand":"US Army Corps of Engineers","offers":[{"title":"Default Title","offer_id":39352420565148,"sku":"1230781","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0441\/7850\/5884\/products\/20210104185708_20210104_132908_012437_Ch63_copy_preview_0.jpg?v=1685323594","url":"https:\/\/store.avenza.com\/products\/lower-mississippi-chart-63-river-mile-3426-to-3347-us-army-corps-of-engineers-map","provider":"Avenza Maps","version":"1.0","type":"link"}