Baia Mare: When Beavers Return, Nature Is Recovering

Rivers shape our landscapes. They strongly influence the environmental character of an area and support a wide range of habitats and ecosystem services. The condition of a river, together with the biodiversity in and around it, reveals much about the health of surrounding soils, ecosystems, and the wider natural environment. 

In Baia Mare and the wider SPADES pilot area in Romania-including the Functional Urban Area (FUA) of Baia Mare, comprising Baia Mare Municipality, the towns of Baia Sprie and TăuțiiMăgherăuș, and Recea Commune- the Săsar river is being closely monitored. It is a defining feature of the pilot area’s environmental setting, flowing through Baia Sprie and Baia Mare before reaching Bozânta Mare within the administrative territory of TăuțiiMăgherăuș. 

Ananta Ardelean from the Baia Mara Metropolitan Area, Intercommunity Development Association reports: 

“Over the past two to three years, there have been numerous observations of beavers returning to the Săsar river, which flows through the City of Baia Mare from one end to the other.” 

The return of beavers is regarded as an indicator of improving ecosystem conditions, particularly with respect to water quality. As natural ecosystem engineers, beavers reshape riverbanks and slow water flow by building dams, creating a greater diversity of habitats that benefit other species. 

While beavers are known to inhabit urban environments, their return to Baia Mare-a city with a long history of soil and water pollution-is particularly encouraging. 

Within SPADES, the Baia Mare pilot addresses the long-term spatial planning challenges resulting from the area's mining and industrial heritage, particularly degraded and contaminated soils caused by centuries of mining and metallurgical activities. The Săsar river is one of the defining features of this post-industrial landscape and is heavily affected by this legacy, including contamination associated with the 2000 Baia Mare mining accident.