Nature-y, beautiful, amazingly majestic views but with a fantastically rustic cabin as your centerpoint, Nature Friends in Sierra Madre also happens to be a non-profit for environmental issues.
Offbeatwed.com

Nestled in a canyon on the edge of the Angeles National Forest, Nature Friends Los Angeles is a one of a kind experience that you and your wedding guests will remember for a lifetime. Discover the perfect harmony of love and nature at our enchanting private club and wedding venue. Nestled in a serene natural setting of the Sierra Madre canyon, our picturesque location offers quiet rustic elegance that is a convenient distance from Pasadena and Los Angeles. Celebrate your special day surrounded by the beauty of the outdoors, creating memories that will last a lifetime.

Amenities include:

A kitchen, bar, indoor and outdoor dining areas.
Multiple outdoor platforms for ceremonies/speeches, etc.
Open space multi-purpose area with propane fire pit for lounging, etc.
Dance floor/auditorium with powerful sound system, and dance lighting (lasers, disco ball, etc).
Stage with piano and projection screen for slideshow presentations and live music.
Multiple outdoor semi-private seating areas for small groups to gather outside the clubhouse.
Four all-gender restrooms.
Parking for up to 20 cars.
High speed fiber internet for streaming music and videos.
Rustic overnight lodging for guests.
The thrill of being on the edge of the Angeles National Forest and having an intimate connection with nature.
Convenient access to modern necessities in nearby towns.