The first Gay and Lesbian Sierrans section was San Franciso GLS, founded in 1986. The Angeles Chapter GLS won recognition in 1988, after a two-year struggle. Loma Prieta GLS was third, becoming an official activity section in 1991. Its first hike was in Uvas Canyon, led by Mike Zampecini. Since then a number of other GLS sections have been established.
| Chapter | Founded | Geographic Area | |
|---|---|---|---|
| Bay | 1986 | San Francisco, California | |
| Angeles | 1988 | Los Angeles, California | |
| Loma Prieta | 1991 | San Jose, California | |
| San Diego | 1995 | San Diego, California | |
| Mother Lode | 1996 | Sacramento, California | |
| Ventana | 2004 | Santa Cruz, California | Shut down ~2006 |
| Rocky Mountain | 2006 | Colorado | |
| Cascade | ? | Washington |