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
Blackhead Mountains Blackhead Mountains The Blackhead Mountains range is located near the northern end of the Catskill Mountains, in Greene County, New York, United States, where it divides the towns of Windham and Jewett. The three named peaks in the range — Thomas Cole Mountain (3,940 feet; 1,201 m), Black Dome (3,980 feet; 1,213 m), and Blackhead Mountain (also in the 3,940-foot range) — are the fourth-, third-, and fifth-highest peaks in the Catskills, respectively. The gap between Thomas Cole and Black Dome is, at 3,700 feet, the highest in the Catskills. To the west of Thomas Cole are two lesser, officially