More recently, on a blazing summer day, he took me back to one of the den sites, in a slumping bank above the South Saskatchewan River.

最近，在夏天一个炽热的日子，他带我回到南萨斯喀彻温河坍塌河岸上这样一个巢穴地点。

youdao

A river rising in central Alberta, Canada, and flowing about 49 km (305 mi) eastward into Saskatchewan then north to the headwaters of the Churchill river.

发源于加拿大亚伯达省中部的一条河流，流程约49公里(305英里)向东进入萨斯喀彻温省，然后向北汇入丘吉尔河的上游。

youdao

All the land between the Rocky Mountains and the Mississippi River from Texas to Saskatchewan used to be a giant expanse of prairie.

全部土地在落矶山脉和密西西比河之间从德克萨斯州到萨斯喀彻温省过去是一个巨大的广阔的大草原。

youdao

The Athabasca River flows north, into Lake Athabasca, which spans the Alberta-Saskatchewan border.

NEWYORKER: Unconventional Crude