I recall small-to-medium wires and Friends when I did it in the mid 80s. Not sure which modern gear it takes. Please feel free to contact me with current gear info, and I'll update the route profile.

Routes in j. The Yellow Wall and The Seasons

1
No Man's Land
5.11
Trad
2
Tiers of Fear
5.12-
Trad
3
The Yellow Wall
5.11c
Trad
4
Lost in Yellow
5.10a
Trad
5
Scary Area
5.12
Trad
6
Airy Aria
5.8
Trad
7
Carbs and Caffeine
5.11a
Trad
8
Wrath of the Lamb
5.6
Trad · Aid
9
Wasp Stop
5.12-
Trad
10
Prick, The
5.12+
Tr · Trad
11
The Sting
5.11d
Trad
12
Lisa
5.9
Trad
13
Mona
5.9
Trad
14
Full Face (pitch 2 only)
5.6
Trad
15
48
5.4
Trad
16
Vader
5.10
Trad
17
Ventre de Boeuf
5.9
Trad
18
Uphill all the Way AKA The Man Who Fell to Earth
5.12-
Trad
19
Double Crack
5.8
Trad
20
Lito and the Swan
5.9+
Trad
21
Ivan and the Saum
5.9
Trad
22
49
5.3
Trad
23
High Jinx
5.9+
Trad
24
Broken Hammer
5.3
Trad
25
The Nose
5.6
Trad
26
Lady's Lament-Boldville
5.8
Trad
27
Filipina
5.9
Trad
28
Boldina
5.7
Trad
29
Bold-Ville
5.8
Trad
30
The Winter
5.10+
Trad
31
The Fall
5.11a
Tr · Trad
32
The Summer
5.11d
Trad
33
The Spring (P1)
5.9
Trad
34
Manly, Yes, But I Like It Too
5.10b/c
Tr · Trad
35
Oblique Twique
5.8
Trad
36
Tweak or Freak
5.10a
Trad
37
Shit Creek
5.7
Trad
38
Dissonance
5.12a
Trad
39
Unslung Heroes (Pitch 1)
5.10a
Trad
40
Los Tres Cabrones
5.9
Trad
41
Blistered Toe
5.8
Trad
42
Torture Garden
5.8
Trad