Objectives:
The goal of the Mountain Rescue Service is to help all casualties in mountain regions. The main aim of the thesis was to analyze the work of the Mountain Rescue Service based on the functioning of the Bieszczady Group.

Material and methods:
The analysis was performed based on 732 reported interventions of the Mountain Rescue Service in the years 2014-2016, respectively. The research was carried out based on accident cards and detailed reports on rescue operations available in the archives in Sanok.

Results:
The Mountain Rescue Service intervened more often for men (57.5%) than for women, more often during the day (71%) than at night. There were 42.9% health emergency cases, and 50.5% concerning people with minor injuries. Unfortunately, 48 accidents (6.6%) were fatal. 25% of all rescue actions took place in extremely bad weather conditions. On the other hand, more accident reports were notified to the regional hospital (64.7%) than to the Bieszczady Group head office (25.7 %). Only 9.6 % of the reports were notified to seasonal aid places.

Conclusions:
There is a great need for keeping the Bieszczady Mountain Rescue Service in its present form. It is necessary for rescuers to enhance their qualifications, as well as improve work efficiency. There is also need for increasing the number of doctors on duty during the summer season, as well as during the day at the seasonal aid places. It is extremely important to place emphasis on gaining medical knowledge in the field of ‘injuries’.