- I do not know (and I am not affiliated with) Dave Tucker, but I highly recommend his book and block. It was an article from Tucker that introduced me to the fossils near Racehorse Creek, starting a long sequence of adventures for which I am grateful.
- Toppenish, Washington (Wikipedia)
Toppenish (/ˈtɒppənɪʃ/) is a city in Yakima County, Washington, United States. The population was 8,854 at the 2020 census. It is located within the Yakama Indian Reservation, established in 1855.
- Dave Tucker (geologist) (Wikipedia)
David Samuel Tucker is a geologist, author, and union organizer in Washington state. He is a research associate at Western Washington University. He was an instructor at North Cascades Institute, and the director of the Mount Baker Volcano Research Center (now closed). He writes the blog Northwest Geology Field Trips, a blog aimed at laypeople detailing where to find interesting geology in the Pacific Northwest. In 2015, he published a popular book on Washington geology, Geology Underfoot in Western Washington. He resides in Bellingham, Washington. In the 1980s he worked as a mountaineering guide in the Cascades, Mexico, and South America.