This river of many names originates in the mountains of the Noen Maprang District of Phitsanulok Province where it is referred to as the Chomphu River (Thai: คลองชมภู).

[1] It then flows through the Wang Thong District where it is referred to as the Tha Muen Ram River (Thai: แควน้ำท่าหมื่นราม),[2] then flows through the Bang Krathum District, and through Wat Ta Yom, where it is referred to as the Wat Ta Yom River.

[1] It discharges into the Nan River in Phichit via the Tha Luang Canal (Thai: คลองท่าหลวง) at 16°26′27″N 100°21′21″E / 16.44083°N 100.35583°E / 16.44083; 100.35583.

The following is a tree demonstrating the points at which the major tributaries of the Tha Luang River branch off from the main river and from each other.

This article related to a river in Thailand is a stub.