Forest rangers Alexander Kiryanov, left, and Dmitry Vingoradov measuring a diseased tree in the Central Forest State Nature Biosphere Reseve, founded on May 4, 1930.
- Categories: Environmental Issues
- Location: Kalinin region, Russia
- Event date: 01.07.1988
- Date published: 14.09.2009
- Author: Vyacheslav Bobkov
- Source: Sputnik
- Credit: Sputnik
- Original: DP88-2700, 35 mm slide
- Media: JPEG, 3696x5154px, 7Mb