Skip to content
Erma River Gorge, Tran
Photo: Vislupus, CC BY-SA 4.0, Wikimedia Commons

National Tourist Site

Erma River Gorge, Tran

A narrow limestone gorge with a footbridge, close to the Serbian border.

National Tourist Site

About Erma River Gorge, Tran

The Tran Gorge, also called the Gorge of the Erma, is a canyon on the Erma river in the easternmost part of the Ruy mountains in western Bulgaria. It lies about 3 km north of Tran, just south of the Serbian border.

The gorge is only a few metres wide in places, with limestone walls rising high above the river. A path and footbridge lead along it, and the Ruy mountain is a popular walking area.

What to see

  • Erma River gorge

Business directory

Companies in Pernik Province

79 companies listed in the province, featured members first.

3A Block

Building Materials

Radomir

3A Block describes itself as a global leader in concrete block moulds, with more than 120 models of its familiar orange moulds for exceptional building solution...

AQ Electric

Electronics and Electrical Equipment

Radomir

AQ Electric AD is a manufacturing company with 449 employees under the motto We are reliable. Its website presents its services, the industries it serves, its c...

DLV

Civil Engineering and Infrastructure

Pernik

DLV EOOD in Pernik does road and residential construction and offers freight transport, construction machinery, aggregates, asphalt and concrete mixes. Clients...

Infraconstruct

Structural Engineering

Pernik

Infraconstruct OOD in Pernik designs transport infrastructure, mainly roads and streets, and offers engineering services. It introduced an ISO 9001:2008 quality...

Print United

Packaging

Pernik

Print United describes itself as a leading European manufacturer of premium labels, folding boxes and flexible packaging, also producing shrink sleeves, doypack...

Sofurban

Building Materials

Pernik

Sofurban is a leading maker of vibro-pressed concrete paving, including pavement slabs, pavers, kerbs, strips and decorative elements. Its plant is in Pernik, c...

Vento-K

Heating, Cooling and Ventilation

Pernik

Vento-K OOD is a Pernik company that supplies a wide range of equipment and components for ventilation, air-conditioning and heating installations. It has a des...

Tourist sites

More National Tourist Sites in Pernik

All The 100 National Tourist Sites

Sources

Figures checked 13 October 2026. Information only, not investment, tax or legal advice.

  1. Bulgarian Tourist Union: 100 National Tourist Sites
  2. Wikipedia: Tran Gorge