The National Science Foundation (NSF) Division of Earth Sciences awarded a $247,428 Project Grant to Trustees of Dartmouth College, Office of Sponsored Projects Division (Dartmouth College), under the Geosciences program (CFDA 47.050). The goal of this 3-year collaborative research project is to examine the Porcupine Fault System in northeastern Alaska and northwestern Yukon, Canada, which likely played a key role in the Mesozoic opening of the Arctic Ocean. The research involves a new partnership between early career and senior academic researchers, federal and state/territory geoscientists, and undergraduate/graduate students across four U.S. institutions and government agencies in the U.S. and Canada. The project aims to further understanding of Mesozoic-Cenozoic tectonic and paleogeographic models for the circum-Arctic, northern Pacific, and northern North American Cordillera, as well as provide insights into dynamics and chronology of crustal deformation in polyphase brittle fault systems.