METAtropolis: CASCADIA (2010) is an audiobook collection of six related stories set in Cascadia in the 2070s. The stories are: "The Bull Dancers" by Jay Lake, "Water to Wine" by Mary Robinette Kowal, "Byways" by Tobias S. Buckell, "The Confessor" by Elizabeth Bear, "Deodand" by Karl Schroeder, and "A Symmetry of Serpents and Doves" by Ken Scholes. Each is read by a different Star Trek actor. Run time is almost 13 ABT hours.
It's a sequel to the original METAtropolis (2008) which worldbuilt around the post-industrial, post-national collapse of the early 21st century. That collection included the story "In the Forests of the Night" by Jay Lake that introduced the setting of Cascadiopolis, an experimental green city hidden in the forests of Mt. Hood, Oregon (it's available for free).
CASCADIA picks up that story 40 years later in the opening "The Bull Dancers" (read by René Auberjonois), which explores the conspiracy behind the city's destruction by orbital missiles; the true identity of the mysterious Tyger Tyger and his connection to an ancient Minoan secret society; and how Cascadiopolis' daughter cities have, despite or perhaps because of the missile attack, gone on to thrive -- rewilding the land and building a new eco-anarchist way of life. This serves as an intro to greater Cascadia, as the following stories portray a changed and changing region in slow recovery.