Mackenzie River from the Peace-Athabasca system are significantly slowed by the delta area at the western end of Lake Athabasca causing the lake to rise, and the excess water can only flow out after the rivers have receded. The same phenomenon occurs at Great Slave Lake, which naturally regulates the flow from the Slave River into the Mackenzie. There are river gages at several upstream points along the Mackenzie River. The average flow rate at the outlet of Great Slave Lake is . At Fort Simpson, below the Liard River, it is . At Norman Wells it is , and at the
The Spring River Flows East Anita Yuen, Carina Lau, and Chen Daoming, but the newer version is translated into English as "The River Flows Eastwards". An operatic adaptation by Hao Weiya under the title "Yi Jiang Chunshui", with libretto by Luo Zhou and Yu Jiang, was premiered at the Shanghai Grand Theater in October 2014. The Spring River Flows East The Spring River Flows East, also translated as The Tears of Yangtze, is a 1947 epic Chinese film written and directed by Cai Chusheng and Zheng Junli and produced by the Kunlun Film Company. It is considered one of the most influential and extraordinary Chinese