the United States. The river missisipi

you are: the United States

While there was a studying of such extensive surface of a land, the share of attention was received also by internal waters. In 1876 river Mississipi shooting was started by lake hydrographic management, and since 1879 these works have passed in conducting the commission of the river Mississipi. In the same way, the shooting of Missouri begun in 1878 has passed since 1884 in conducting the commission of the river Missouri.

In 1807 after the congress has accepted ' the Law on shooting of coast of the United States ', the hydrographic and geodetic service of the USA has been organised. To shooting was pristu-pleno only since 1816, but till 1843 when reorganisation of service has been spent, works went with the big faults. Since then the hydrographic and geodetic service has finished primary shooting of coasts of the Connected States-Atlantic, Pacific and Southern (Gulf of Mexico) has created the big triangulable line through all North American continent about 39th parallel.