The trench-like landform in the Himalayas is not a trench in the geological sense, but rather a deep valley. These valleys, often called gorges, are formed by the erosive power of rivers cutting through the towering mountains.

Here are some examples of deep valleys in the Himalayas:

* Indus Gorge: This valley is carved by the Indus River and is one of the most dramatic features in the Himalayas.

* Kali Gandaki Gorge: This valley, also known as the "Deepest Gorge in the World", is carved by the Kali Gandaki River and is incredibly narrow and deep.

* Yarlung Tsangpo Grand Canyon: This canyon, carved by the Yarlung Tsangpo River, is one of the largest and deepest canyons in the world.

While these features are not trenches in the strict geological sense, they are narrow, deep, and often have a similar appearance to trenches.