Yuèshān-guan, alternatively Gassankan [月山館; "Moon Mountain School"], is the name of a private training activity in the Pacific Northwest led by Mark Raugas that is concerned with the development of skill at internal martial arts. The core of my practice is centered around Northern Wú (吴) Tàijíquán and related arts maintained as part of Yin Cheng Gong Fa North America.

Inner Dharma was a writing project concerned with classical and traditional martial arts and culture — I want to thank all the readers who provided feedback and encouragement over a period of twenty years.

Mark Raugas