Each symbolic stones along the rivers at Qianjiangyuan National Forest Park in Kaihua county, Quzhou, East China's Zhejiang province, has obtained their own unique identification, local media reported on July 18.

The colorful river rocks are not only a nature landscape, but also play an important role in protecting water ecological environment and preventing earth from being washed down the hillsides, according to Jiang Xianxiong, director of a local police station, who is responsible for these rocks.

As increasingly more of the rocks have been stolen in recent years, local police decided to collect information about each symbolic stones to avoid further theft in 2016.

Each symbolic stone is recorded by a picture, which is uploaded together with information about its forms, location and weight to an online platform.

A total of 20 cameras are installed along each river at Qianjiangyuan National Forest Park to supervise these rocks all day long.

Based on the videos and basic information, guards of these stones are capable of efficiently presenting them from being stolen.

In last summer, three rock thefts from outside Kaihua county was caught carrying away the protected stones with the help of the real-time video.

At present, information about large and oddly shaped rocks along Longmen, Zuoxi and Longtian rivers have been collected and information about rocks along more rivers at Qianjiangyuan National Forest Park will be collected in the near future.

Each symbolic stones along the rivers at Qianjiangyuan National Forest Park in Kaihua county, Quzhou, obtains their own unique identification. [Photo/qz123.com]