Long, John; Gaines, Bob (August 2022). "Chapter 5. Crack Climbing". How to Rock Climb (6th ed.). Falcon Guides. pp. 85–121. ISBN 978-1493056262. 978-1493056262
Whittaker, Pete (January 2020). Crack Climbing. Vertebrate Publishing. ISBN 978-1493056262. 978-1493056262
Long, John; Gaines, Bob (August 2022). "Chapter 5. Crack Climbing". How to Rock Climb (6th ed.). Falcon Guides. pp. 85–121. ISBN 978-1493056262. 978-1493056262
Long, John; Gaines, Bob (August 2022). "Chapter 5. Crack Climbing". How to Rock Climb (6th ed.). Falcon Guides. pp. 85–121. ISBN 978-1493056262. 978-1493056262
Long, John; Gaines, Bob (August 2022). "Chapter 5. Crack Climbing". How to Rock Climb (6th ed.). Falcon Guides. pp. 85–121. ISBN 978-1493056262. 978-1493056262
Whittaker, Pete (12 October 2021). "Pete Whittaker's Five Ultimate Rules for Crack Climbing". Climbing. Retrieved 8 October 2024. /wiki/Pete_Whittaker
Pease, Ken (5 August 2022). "How to Crack Climb". Climbing. Retrieved 8 October 2024. https://www.climbing.com/skills/how-to-crack-climb/
Whittaker, Pete (January 2020). Crack Climbing. Vertebrate Publishing. ISBN 978-1493056262. 978-1493056262
Whittaker, Pete (January 2020). Crack Climbing. Vertebrate Publishing. ISBN 978-1493056262. 978-1493056262
Pardy, Aaron (2 February 2024). "10 Climbing Grade Milestones Since 1961". Gripped Magazine (Canada). Retrieved 9 October 2024. https://gripped.com/profiles/10-climbing-grade-milestones-since-1961/
Oviglia, Maurizio (23 December 2012). "The evolution of free climbing". PlanetMountain.com. Retrieved 9 October 2024. https://www.planetmountain.com/en/news/climbing/the-evolution-of-free-climbing.html
Bisharat, Andrew (6 October 2009). "Chapter 1: Ethics, Style, and Emergence of Sport Climbing". Sport Climbing: From Toprope to Redpoint, Techniques for Climbing Success. Mountaineers Books. ISBN 978-1594852701. Retrieved 8 October 2024. 978-1594852701
"Watch Didier Berthod is Back / Interview with Swiss crack climbing legend". PlanetMountain. 19 May 2021. Retrieved 9 October 2024. https://www.planetmountain.com/en/news/climbing/watch-didier-berthod-is-back-interview-with-swiss-crack-climbing-legend.html
"Greenspit, the dream of a generation climbed in Valle Orco by Matteo della Bordella, Francesco Deiana". PlanetMountain. May 2019. Retrieved 9 October 2024. https://www.planetmountain.com/en/news/climbing/greenspit-dream-generation-climbed-valle-orco-matteo-della-bordella-francesco-deiana.html
Lambert, Erik (31 August 2007). "Trotter Chops Bolts, Sends Marathon Crack Project". Alpinist. Retrieved 8 February 2023. http://www.alpinist.com/doc/ALP20/newswire-trotter-path-bolt-chop
"Prinzip Hoffnung, from Beat Kammerlander madness to new crack climbing classic" [es]. Desnivel (in Spanish). 10 March 2014. Retrieved 9 October 2024. https://www.desnivel.com/escalada-roca/prinzip-hoffnung-de-locura-de-beat-kammerlander-a-nueva-clasica/
Lambert, Erik (31 August 2007). "Trotter Chops Bolts, Sends Marathon Crack Project". Alpinist. Retrieved 8 February 2023. http://www.alpinist.com/doc/ALP20/newswire-trotter-path-bolt-chop
Lambert, Erik (31 August 2007). "Trotter Chops Bolts, Sends Marathon Crack Project". Alpinist. Retrieved 8 February 2023. http://www.alpinist.com/doc/ALP20/newswire-trotter-path-bolt-chop
"Jacopo Larcher repeats Beth Rodden's Meltdown in Yosemite". PlanetMountain. 26 November 2022. Retrieved 8 October 2024. https://www.planetmountain.com/en/news/climbing/jacopo-larcher-repeats-beth-rodden-meltdown-in-yosemite.html
Pardy, Aaron (6 November 2023). "Rare Repeat of World's Hardest Offwidth Crack". Gripped Magazine (Canada). Retrieved 8 October 2024. https://gripped.com/news/rare-repeat-of-worlds-hardest-offwidth-crack/
The Editors (11 November 2011). "Wide Boyz on Century Crack (5.14b), World's Hardest Offwidth". Climbing. Retrieved 8 October 2024. https://www.climbing.com/videos/wide-boyz-on-century-crack-5-14b-worlds-hardest-offwidth/
"Longest Roof Climb". Guinness World Records. 2024. Retrieved 8 October 2024. The longest continuous roof (horizontal) climb in the world is "The Great Rift", a 762-m-long crack-climb that has been graded as a 5.13. The route, which runs along the underside of an elevated section of the M5 motorway in Devon, was discovered and completed for the first time in November 2021 by British climbers Tom Randall and Pete Whittaker https://www.guinnessworldrecords.com/world-records/691477-longest-roof-climb
Clarke, Owen (8 December 2021). "Wide Boyz Tackle The Great Rift (5.13) Roof Crack Under 2,500-foot Cement Bridge". Climbing. Retrieved 8 October 2024. https://www.climbing.com/news/wide-boyz-climb-the-great-rift-2500-foot-5-13-bridge-crack/