In November 2024 the Field Museum's rapid inventory team joined forces with the Guyanese government, local Indigenous experts, and scientists from across Guyana to explore the Acarai-Rupununi Corridor—a vast roadless wilderness in southern Guyana. Together, our large and multidisciplinary team recorded the complex history and deep ecological knowledge of nearby Indigenous communities, alongside the geology, plants, and vertebrates of this 1.5 million-hectare expanse. Using a variety of time-tested and cutting-edge techniques, we uncovered an undisturbed landscape harboring dozens of undescribed species, an abundance of previously undocumented stone carvings, and a spectacular diversity of plants and animals. Our July 2025 report (available below) synthesizes those discoveries into a set of ideas about how Guyana can leverage these lands and waters to advance its ambitious conservation goals.