Year: 2025, Number: 4, Pages: 62-76
This paper provides a brief account of an interdisciplinary biogeographical expedition to the Kumaon Himalaya, Uttarakhand State, India, conducted in April–May 2025. The expedition was organized by the Center for Himalayan Research of the St. Petersburg Association of Scientists & Scholars (SPASS) and was also conducted under the auspices of the Russian Association of Himalaya and Tibet Researches. It was the 8th comprehensive SPASS expedition to the Western Himalayas and the 3rd to Uttarakhand State. Participants surveyed the western part of Kumaon, from the Indo-Gangetic Plain to the southern foothills of the Great Himalaya (the Nanda Devi Massif, 3560 m a. s. l.). Observations were conducted and material was collected for botanical and zoological (insects, aquatic invertebrates, amphibians, reptiles) research in accordance with existing permits.