In this episode I explore the spires and walls made up of pyroclastic breccia in Pinnacles National Park, and why the rock is notoriously chossy.

Link to the Blog: jazzhammer.blogspot.com/

Email Me at: [email protected]

Insta: @Jazzhammer365

Mountain Project: Quinn Todzo

In this episode I talk about the strange formation of the serpentinite rock on one of the most quintessential bay area locations, the top of Mt. Tamalpais

Link to the photos/sources/show notes: jazzhammer.blogspot.com/

Email Me at: [email protected]

Insta: @Jazzhammer365

Mountain Project: Quinn Todzo

This episode is the full, uncut conversation that I had with Luke Mehall about Joshua Tree and climbing in general. Luke talks about some of the crazy experiences he had while living in J-Tree for the winter of 2006. Snip bits of the conversation were presented in Episode 7: Joshua Tree.

Follow Luke in IG @lukemehall_writer

Luke's Podcast: The Dirtbag State of Mind at https://climbingzine.com/

Email Me at: [email protected]

Insta: @Jazzhammer365

Mountain Project: Quinn Todzo

In this episode I am joined by writer Luke Mehall and climbing guide Roddy McCalley to talk about the endless slabs and cracks among the islands of boulder stacks in Joshua Tree

Link to the photos/blog/show notes: https://jazzhammer.blogspot.com/

Link to Roddy's guide website: https://climbwithroddy.com/

Link to the Dirtbag State of Mind podcast by Luke Mehall: https://climbingzine.com/dirtbag-state-of-mind-podcast/

Email Me at: [email protected]

Insta: @Jazzhammer365

Mountain Project: Quinn Todzo

This week I discuss Joes Valley, Utah and why there are so many amazing boulders there. I also take some time to talk about the consequences of reopening the nearby coal mine

T-Shirt/Tank Order Form!! https://docs.google.com/forms/d/e/1FAIpQLScjxRNUXePN2IgX9hzaOtQJkwL7qR0u8SE0YPFt6m7jh8LucQ/viewform?usp=sf_link

Blog for episode notes, sources, and pictures: jazzhammer.blogspot.com/

Email Me at: [email protected]

Insta: @Jazzhammer365

Mountain Project: Quinn Todzo

In this episode I continue talking about the Sierra Nevada Granite talking about exfoliation joints and the onion like sheeting, spheroidal weathering of boulders, and lots about jointing in general.

Blog for episode notes, sources, and pictures: https://jazzhammer.blogspot.com/

Check out HowNOTToHighline on Youtube: https://www.youtube.com/channel/UCQvq-0fss4lNrmIz7gcPLtQ

Email Me at: [email protected]

Insta: @Jazzhammer365

Mountain Project: Quinn Todzo

In this episode I discuss how the sierra nevada granite was formed and shaped for climbing, and use the Emigrant Wall and Kirkwood Lakes areas to talk about it.

Blog for episode notes, sources, and pictures: https://jazzhammer.blogspot.com/2020/10/episode-4-notes.html

Email Me at: [email protected]

Insta: @Jazzhammer365

Mountain Project: Quinn Todzo

In this episode I deliver some announcements about the podcast and then continue the discussion about columnar jointing in the Bishop Tuff at Deadman Summit that I started last episode.

Blog! https://jazzhammer.blogspot.com/

This episode I headed out to Deadman Summit in the Eastern Sierra for some awesome bouldering, featuring Volcanic Tuff rock. In the episode I talk about igneous rocks, welded tuff, and one of the biggest explosions the Earth has ever experienced!

Photos

https://imgur.com/gallery/WhBLo1s - my photos of the climbing at Deadman Summit, as referenced in the episode

Mountain Project Climbs

https://www.mountainproject.com/area/106185356/center-block - Pig nose climb, some crack climbs, and deadman’s corner

https://www.mountainproject.com/area/106185421/right-wing - Boulder problem “B” my profile photo

https://www.mountainproject.com/area/106064816/june-lake-area - The rest of the June Lake area

Sources

http://the-great-silence.blogspot.com/2009/10/legend-of-deadman-legends-and-lore-2009.html

The legend of deadman’s summit

https://geology.com/rocks/tuff.shtml - tuff in general

https://sierra.sitehost.iu.edu/papers/2012/Southworth.pdf - bishop tuff

https://www.usgs.gov/volcanoes/long-valley-caldera/geologic-history-long-valley-mono-basin-region - long valley caldera

https://www.usgs.gov/volcanoes/long-valley-caldera/long-valley-caldera-field-guide-inyo-craters - more on the long valley caldera

https://colosseumrometickets.com/building-materials-of-the-colosseum/ - roman collesium

https://blogs.agu.org/georneys/2012/11/18/geology-word-of-the-week-c-is-for-columnar-jointing/#:~:text=The%20fracture%20pattern%20that%20forms,other)%20shape%20and%20form%20columns.&text=Water%20can%20play%20a%20role,columnar%20jointing%20in%20lava%20flows. - columnar jointing

https://www.nps.gov/depo/index.htm - Devil’s Postpile Columnar Jointing

This episode I travel to the Goat Rock Climbing Area of Sonoma Coast State Park, which turned out to be a lot more than what initially met the eye.

Pictures

https://imgur.com/gallery/Irkb0Kw - my photos of this area and of the climbs

Different Climbs mentioned in the episode:

https://www.mountainproject.com/route/105735995/mid-term - Mid-Term

https://www.mountainproject.com/route/105735977/skullcracker - Skullcracker

https://www.mountainproject.com/route/105735989/sunset-traverse - The traverse

https://www.mountainproject.com/area/111503528/mammoth-rock - holistic view of the mammoth rock

Sources

https://pubs.usgs.gov/fs/2018/3002/fs20183002.pdf - Marine Terrace

http://www.ncgeolsoc.org/wp-content/uploads/2018/01/2010-1_Geology-Sonoma-Coast_MASTER.pdf - General geology of the area

https://baynature.org/article/goat-rock-state-beach/ - talk about the area including stuff about the geology and scenery

https://www.sfgate.com/bayarea/article/Ice-Age-clues-near-Bodega-Scientist-thinks-2466058.php - mammoth rocks