The Comeback of SPROG: The Revival of a Youth Legacy in the Sierra Club
The Comeback of SPROG: The Revival of a Youth Legacy in the Sierra Club Images of SPROG 2025, by Sierra Club ut-estella Sun, 2025-11-30 20:58 History of SPROG & SSC The Summer Program, also known as SPROG, was a legacy of the Sierra Student Coalition (SSC), the former youth branch of the Sierra Club. It was founded by Adam Werbach in 1991 to network young pe
Sierra Club - Explore, Enjoy, and Protect the Planet7mo ago 
