That was a really great way to finish my reading for 2021. While I may have found some bits a tad mind-glaze-y, overall I found it very readable, very informative. In fact, sometimes the author got downright quippy - I think I may have actually laughed out loud at the Fork Rock sandals/Nike footwear bit, "So uniform is the style throughout the Great Basin that it is called the Fort Rock sandal, Oregon's first successful footgear design and export." [p. 232] My inner business librarian was very, very amused.
And for sure the book has a lavish amount of photographs showing how all the geologic things are looking in these modern times. Which, lovely! But sometimes I wept for a nice graph or chart or something to pull all these geologic activities together for me. For example, one thing that was all new to me was the fact that back in the supercontinent era, Idaho was the west coast of this part of North America. And while the author very ably described many, many details for how various "Pacific" island bits were accreted into exotic terranes and how oceanic plate subduction did its thing for mountain-growth and such, I don't really have a clear visualization of the progression of how North American went from Idaho as west coast to Oregon as west coast.
Honestly, those "buts" are just minor quibbles. Overall, I was just thrilled to learn about all these various geologic forces in such an understandable way. And I really, really enjoyed how at a certain point my brain started to perceive 20 - 16 million years ago as so young and recent. LOL! And maybe, just maybe, this pandemic will dial down before I forget all the tidbits I learned about the 300-mile basalt lava flow from eastern Oregon to the Pacific coast. For sure my peeps want to hear about that!
Probably more in the 4-star range for me, but as I'm weak to all the delights included I'm just gonna go ahead and give it 5 stars. And, yes, I've already looked for more on California and/or other western North America ancient geologic history books.