Section W4A served the Western and Northern areas of BSA Area 4 from 1973 to 2008. Section W4A was formed in 1973 from Area 12-E and comprised the same area, Lodges, and borders.

In 2008, after the Western Region reorganization, Section W4N was created with the same area and Lodges.

Lodges Included:

• Canalino Lodge # 90 (1973 – 1996)
• Chumash Lodge # 90 (1996 – 2008)
• Chumash Lodge # 304 (1973 – 1996)
• Siwinis Lodge # 252
• Spe-Le-Yai Lodge # 249
• Ta Tanka Lodge # 488
• Topa Topa Lodge # 291
• Yowlumne Lodge # 303