Grand Slam Club/Ovis (GSCO) is a 501(c)(3) international, non-profit conservation and record-keeping organization.
Established in 1956, GSCO is one of the oldest conservation organizations of its kind.
We believe hunting is the #1 conservation tool. Our milestones, which include the Grand Slam of North American Wild Sheep offer a structured roadmap for pursuing diverse and exciting hunting experiences.
These journeys inspire members to become active conservationists through their pursuits.