Bas Cuvier

France / Île-de-France / Seine-et-Marne

Quick Info

Country France 🇫🇷
Rock type Sandstone
Climbs
Boulder problems 39 (3 to 9A+)
Traverses 1 (8b)

Quick Info

Country France 🇫🇷
Rock type Sandstone
Climbs
Boulder problems 39 (3 to 9A+)
Traverses 1 (8b)
Contributors
440 contributions since 26th February 2021.
398 contributions since 23rd May 2025.
soc
27 contributions since 28th October 2026.
11 contributions since 29th October 2026.
10 contributions since 16th April 2026.
6 contributions since 13th February 2025.
6 contributions since 4th June 2025.
2 contributions since 4th November 2026.
1 contribution since 8th July 2026.
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Climbs

40 recorded climbs.

This timeline is missing some first ascents where the date of the ascent is unknown.
Year Climb Grade Climber Style Date
First ascent.

John Watson:

It is likely children scrambled over the rocks ever since Stone Age humans carved petroglyphs in the softer caves of sandstone while they waited out storms or simply rested after hunts. They are natural challenges to anyone wishing to prove their boldness, or maybe a natural soap-box for proclaiming and rallying, or simply for viewpoints and quiet reflection. However, the first attempt at any serious climbing began in 1874 when Ernest Cézanne created the French Alpine Club in Paris. They took trains to the nearby forest of Fontainebleau, climbing some of the easier and taller pinnacles, no doubt using them to 'keep their hand in' until the summer holidays. The shadow of the Alps still loomed over the boulders until something odd happened in 1908. A small group of climbers explored the forest and formed the Groupe Rochassier which actively sought out unique short climbs in Fontainebleau that did not necessarily need ropework. Jacques Wehrlin climbed one such route in 1908 which is the large crack left of the modern classic of Duroxmanie at Cuvier East. It might not appeal to the present-day boulderer (fashions change!), but it was certainly seen as a problematic climb that required focussed technique and employed the key elements of good climbing. Wehrlin himself noted in an essay that at Fontainebleau 'the sandstone is quite smooth and the holds are rare' which suggests he was looking for something more than just the summit experience - he was after the absence of holds and the idea of impossibility, long before the likes of Philippe Le Denmat, Jacky Godoffe, Fred Nicole and other such modern luminaries.

References

[1] https://www.ukclimbing.com/articles/features/voice_in_the_forest_-_fontainebleau-1478

1909
1910–1912
1913
1914 La Prestat (pre-break) 4 Jacques de Lépiney Boulder | worked 1914
First ascent.
1915
1916–1944
1945
1946 La Marie-Rose 6A René Ferlet Boulder | worked 1946
First ascent.
1947
1948
1949
1950 La Stalingrad 6B Paul Jouy Boulder | worked 1950
First ascent.
Le Carre d’As 6C+ Paul Jouy Boulder | worked 1950
First ascent.
1951
1952
First ascent.

Paragot's suggested grade was '6f' or 'VI h' [depending on source].

According to 'Fontainebleau: 100 ans d'escalade', before the war, Alpinists had introduced the I-VI system created by Willo Welzenbach in 1926 and capped at grade VI. Pierre Allain proposed splitting grade VI into 'VI a', 'VI b', 'VI c', 'VI d', etc, to allow 'grades to breathe again'. So La Joker, at the cutting edge of difficulty, was graded 'VI h'.

When the grades were rationalised and the seventh grade accepted, La Joker was graded VII-, later translated to 7a. It therefore retrospectively became the first 7 in the forest, a few years ahead of the first climb claimed at grade 7, L'Abattoir.

References

[1] Godoffe, Modica, 'Fontainebleau: 100 ans d'escalade', Éditions du Mont-Blanc, 2017, p.194

1954
1955–1958
1959
1960 L'Abattoir 7A+ Michel Libert Boulder | worked 1960
First ascent.
1961
1962–1968
1969
1970 Le Biceps Mou 7B Jo Montchaussé Boulder | worked 1970s
First ascent.
1971
1972–1975
1976
First ascent.

First 7B in the Forest. Chipped. Upgraded to 7B+ in 2001 after further chipping.

1978
1979
First ascent.

Bleau.info lists Ghersen as first ascentionist, whilst 7+8 2016 edition lists Godoffe.

1981
1982 L'Aérodynamite 7B+ Jacky Godoffe Boulder | worked 1982
First ascent.
1983 L'Abbé Résina 7C Pierre Richard Boulder | worked 1983
First ascent.
Bérézina-Carnage 7C+ Alain Ghersen Boulder | worked After 1st Jan 1983
First ascent.
First ascent.
1985 Hypothèse 7C+ Jacky Godoffe Boulder | worked 1985
First ascent.
Infidèle 7C Jacky Godoffe Boulder | worked 1985
First ascent.
1986 La Balance 7C+ Jacky Godoffe Boulder | worked 1986
First ascent.
1987
1988 Apothéose 7C+ Alain Ghersen Boulder | worked 1988
First ascent.
1989 Coup de Feel (pre-break) 8A Jacky Godoffe Boulder | worked 1989
First ascent.
First ascent.

"A major step forward in slab climbing difficulty." – OTE Guide, 1997

Originally given 8A, according to Cosiroc history page.

References

[1] https://cosiroc.fr/index.php/histoire

Le Mouvement Perpétuel 8b (approx) Jacky Godoffe Boulder | worked 1989
First ascent.
First ascent.

7+8 guide (2016) lists FA data as 1990, but bleau.info has an ascent by Michel Gialdrone logged on 28/10/1989

1990
1991
1992
1993 Digitale 8A Jacky Godoffe Boulder | worked 1993
First ascent.
1994 Lune de Fiel 7C+ Emmanuel Ratouis Boulder | worked 1994
First ascent.
1995
1996–1997
1998
1999 Neverland 8A Jos Leenen Boulder | worked 1999
First ascent.
2000 Wostok 1 8B Thomas Willenberg Boulder | worked 2000s
First ascent.
2001
2002
2003
2004 Imothep 8A Julien Nadiras Boulder | worked 2004
First ascent.
2005
2006–2015
2016
2017 Bélial 8C Charles Albert Boulder | worked Before 27th Apr 2017
First ascent.
Saruman (du bas) 8B Nico Pelorson Boulder | worked Before 21st Nov 2017
First ascent.
First ascent.
2019
2020–2021
2022
First ascent.
First ascent.
Climb Grade # Recorded Ascents Ascents Recorded Between
Imothep (assis) 9A+ (approx) 2
Hypothèse (assis) 8C+ 1 1st December 2018 – 1st January 2019
Bélial 8C 7 29th January 2020 – 1st April 2026
Imothep (du Sol) 8B+ 5 2nd April 2023 – 13th December 2025
Bélial (Droite) 8B 7 18th January 2019 – 1st January 2026
Saruman (du bas) 8B 3 21st November 2017 – 15th April 2026
Wostok 1 8B 1 1st January 2000 – 1st January 2010
Kingdom 8B 1 8th March 2024
Golden Feet 8A+ 3 1st January 1989 – 25th February 2022
Imothep 8A 2 1st January 2004 – 31st December 2025
Coup de Feel (pre-break) 8A 2 1st January 1989 – 1st January 1994
Digitale 8A 1 1st January 1993 – 1st January 1994
Neverland 8A 1 1st January 1999 – 1st January 2000
Saruman 8A 0
La Balance 7C+ 3 1st January 1986 – 1st May 2024
Apothéose 7C+ 1 1st January 1988 – 1st January 1989
Hypothèse 7C+ 1 1st January 1985 – 1st January 1986
Bérézina-Carnage 7C+ 1 1st January 1983
Lune de Fiel 7C+ 1 1st January 1994 – 1st January 1995
Le Carnage (assis) 7C 4 2nd November 2018 – 29th October 2026
L'Abbé Résina 7C 4 1st January 1983 – 1st January 1994
Infidèle 7C 2 1st January 1980 – 1st January 1990
Apollo 7C 1
Coup de Feel 7C 0
Michel-Ange 7C 1 28th October 1989
Le Carnage 7B+ 5 1st January 1977 – 10th April 2024
La Super Prestat 7B+ 1 24th February 1984
L'Aérodynamite 7B+ 1 1st January 1982 – 1st January 1983
Le Biceps Mou 7B 1 1st January 1970 – 1st January 1980
L'Abattoir 7A+ 1 1st January 1960 – 1st January 1961
La Joker 7A 1 1st January 1953 – 1st January 1954
L'Hélicoptère 7A 1 26th October 2022
Le Carre d’As 6C+ 1 1st January 1950 – 1st January 1951
Duroxmanie 6C 0
La Stalingrad 6B 1 1st January 1950 – 1st January 1951
La Marie-Rose 6A 3 1st January 1946 – 29th October 2026
La Prestat (pre-break) 4 1 1st January 1914 – 1st January 1915
La Fissure Wehrlin 3 1 1st January 1908 – 1st January 1909
La Prestat 3 0
Climb Grade # Recorded Ascents Ascents Recorded Between
Le Mouvement Perpétuel 8b (approx) 2 1st January 1989 – 1st January 1994