They had to cross the river if they wanted to get to the gold mine.
如果他们想去采金矿,就必须过河。
2
From there it was almost nine hundred kilometers by boat down the Yukon River to the town of Dawson were gold had been discovered. But there was no boat service.
Other people quickly traveled to the area of the great Klondike River where the three had made the discovery. Some also found huge amounts of gold, enough to make them extremely rich.