The Teplá River springs from peat bog meadows on the northern slope of Podhorní vrch (Podhorní Hill) at an elevation of 784 metres above the sea level and presently flows into the 90-hectare Podhora (Piedmont) water reservoir built in 1956. After a few kilometres, it enters into much older waterworks, i.e. into the flow-through 30-hectare Betlém (Bethlehem) Fish Pond built by Premonstratensian monks in the late 15th century. The river gave its name to both the Premonstratensian monastery founded by beatified Hroznata and the nearby small town of Teplá. The name of the river originates in the times of ancient Slavs who denoted the river as Teplá, which literally means "Warm River". This was because the river, heated by thermal springs, did not freeze even in the harshest winters. The name later assimilated into its German variant Tepl – as we can see in a map dating to 1856.
Below the small town of Teplá, the river steeply deviates from its eastward direction and descending rapidly, it leaves the plateau. After leaving Poutnov, the Teplá River flows through a romantic canyon-like valley where its waters become the wildest from the confluence with the Mnichovský potok (Mnichov Brook). It is floatable in a kayak under suitable water-level conditions from there. The river then copies the railway tracks and occasionally also the road as it approximates the remarkable town of Bečov. It winds around the cliff with the majestic Bečov Castle and Chateau and heads through the valley to another obstacle built by man, this time already in 1934 – to the 40 metre high přehrada Březová (Březová Dam).
When the dam discharges water, the riverbed changes into roaring whitewater and it is the venue of annual races testing waterman skills. In 2001, the Teplá River was also the venue of the wild water world cup finishing in the centre of Karlovy Vary. In Karlovy Vary, the picturesque river reaches the end of its 64-kilometre long journey in its more powerful sister, the Ohře.