Most people in the United States have forgotten that tens of thousands of U.S. citizens migrated westward to California by way of Panama during the California Gold Rush. Decades before the completion of the Panama Canal in 1914, this slender spit of land abruptly became the linchpin of the fastest route between New York City and San Francisco—a route that combined travel by ship to the east coast of Panama, an overland crossing to Panama City, and a final voyage by ship to California. In Path of Empire, Aims McGuinness presents a novel understanding of the intertwined histories of the California Gold Rush, the course of U.S. empire, and anti-imperialist politics in Latin America. Between 1848 and 1856, Panama saw the building, by a U.S. company, of the first transcontinental railroad in world history, the final abolition of slavery, the establishment of universal manhood suffrage, the foundation of an autonomous Panamanian state, and the first of what would become a long list of military interventions by the United States.Using documents found in Panamanian, Colombian, and U.S. archives, McGuinness reveals how U.S. imperial projects in Panama were integral to developments in California and the larger process of U.S. continental expansion. Path of Empire offers a model for the new transnational history by unbinding the gold rush from the confines of U.S. history as traditionally told and narrating that event as the history of Panama, a small place of global importance in the mid-1800s.

A listing of current and completed research projects sponsored by Caltrans' Division of New Technology, Materials and Research in the PATH (Partners for Advanced Transit and Highways) program.

In this provocative walking meditation, writer and former park ranger William Tweed takes us to California’s spectacular High Sierra to discover a new vision for our national parks as they approach their 100th anniversary. Tweed, who worked among the Sierra Nevada’s big peaks and big trees for more than thirty years, has now hiked more than 200 miles along California’s John Muir Trail in a personal search for answers: How do we address the climate change we are seeing even now—in melting glaciers in Glacier National Park, changing rainy seasons on Mt Rainer, and more fire in the West’s iconic parks. Should we intervene where we can to preserve biodiversity? Should the parks merely become ecosystem museums that exhibit famous landscapes and species? Asking how we can make these magnificent parks relevant for the next generation, Tweed, through his journey, ultimately shows why we must do just that.

An Expert's View of the Big Cat's Fight to Find Its Wild