Grzegorz Gawlik on different continents and in different climates. Among other things, he discovered the highest lakes in the world on the Ojos del Salado volcano and found that the highest active volcano in the world is Llullaillaco. In addition, he explored more than 100 other volcanic sites such as geyser fields, geothermal fields, volcanic caves, volcanic deserts, volcanic plateaus, volcanic craters and cones, volcanic rock formations, lava fields. He climbed to about 100 peaks 4-, 5-, 6- and 7-thousand meters in the Himalayas, Andes, Pamir, Caucasus, Cordillera, High Atlas, Tanzania, Borneo and hundreds of lower peaks. During the expeditions, Gawlik explored
Sankamphaeng Range the southern end of the Dong Phaya Yen Mountains, which run roughly in a north-south direction at the southwestern boundary of the Khorat Plateau. To the east this range connects with the Dângrêk Mountains, a longer system running in an east-west direction that stretches into Laos. The southern mountainsides of the range drain into the Prachinburi River. The range is divided in two compact massifs where the highest elevations are in the west. The highest point in the Sankamphaeng Range is the 1,351 m high Khao Rom, also known as Khao Khiao. Other peaks are 1,326 m high Khao Laem,