At winter's end in 1947, driven by the devastating loss of a son killed in World War II, naturalist Edwin Way Teale and his wife Nellie followed the dawning spring season northward in an amazing 17,000 mile odyssey from the Everglades to Maine. He wrote about the adventure in the best-selling book North with the Spring. Retracing Teale's route, writer John Harris reveals a vastly changed natural world. In Returning North with the Spring, he stops at the very places where Teale once stood, paddling through Everglades National Park, the Okefenokee wildlife refuge, the Great Dismal Swamp, and trekking across the Great Smoky Mountains, the New Jersey Pine Barrens, and Cape Cod. He is stunned to see how climate change, invasive species, and other factors have affected the landscapes and wildlife in the years since Teale saw them. Yet Harris also discovers that many of the vulnerable sites Teale described have been newly "rewilded" or permanently protected by the government. Along the way, he meets an array of ecologists, naturalists, and beloved authors who join in his adventure by sharing their memories and experiences of the natural environment in Eastern North America.