They had concentrated along the upper course of the Lena.

There are a lot of water springs at its upper course.

Many hiking trails are found along the upper course of the river.

From this lake issues the Congo, known in its upper course by various names.

Next to its upper course, on the two sides there were empty spaces where the remains of a market have been found.

In its upper course, it is usually dry during the summer.

The water of its upper course and tributaries is fresh.

Going west along the Mother's upper course, the ridge ahead was the last outlier.

In the upper course it is also known as Lubilanji.

In its upper course is the town of Chulym, named after the river.