سد الوادي
04-16-2012, 11:20 AM
تقع بحيرة بايكال في جنوب سيبيريا في روسيا. وهي أعمق بحيرة مياه عذبة في العالم حيث يبلغ عمقها 1642 م وتضم أكبر حجم للمياه العذبة السطحية في العالم. هي أيضاً أقدم البحيرات في العالم. يبلغ طولها 395 ميل ومتوسط عرضها 3 أميال ويصب فيها 336 نهراً.
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