Castlewood Country Club's Hill Course sits in the rolling terrain of Pleasanton in California's Tri-Valley region, roughly 35 miles east of San Francisco. Designed by William Francis Bell and opened in 1969, the course takes advantage of the area's natural topography, with elevation changes that give the layout its name and provide varied playing angles across the property. Bell, a prolific California architect of the mid-20th century, routed the course through oak-studded hillsides characteristic of the region. The layout features the kind of strategic design Bell favored during this period, with doglegs that reward thoughtful positioning and greens that require accurate approach play. The elevation changes create both uphill and downhill shots, and the natural contours influence how the course plays in different wind conditions common to the Tri-Valley. Mature oaks frame many holes and come into play on tee shots and approaches. Castlewood operates as a private club and has served the Pleasanton community for over five decades. The club added a second eighteen, the Valley Course, in later years. The Hill Course remains the original Bell design and reflects the architectural style of California golf in the late 1960s, when designers worked to balance challenge with playability across varied terrain. The course provides views of the surrounding hills and maintains the character of its era while serving the club's membership.

Castlewood Country Club's Hill Course sits in the rolling terrain of Pleasanton in California's Tri-Valley region, roughly 35 miles east of San Francisco. Designed by William Francis Bell and opened in 1969, the course takes advantage of the area's natural topography, with elevation changes that give the layout its name and provide varied playing angles across the property. Bell, a prolific California architect of the mid-20th century, routed the course through oak-studded hillsides characteristic of the region. The layout features the kind of strategic design Bell favored during this period, with doglegs that reward thoughtful positioning and greens that require accurate approach play. The elevation changes create both uphill and downhill shots, and the natural contours influence how the course plays in different wind conditions common to the Tri-Valley. Mature oaks frame many holes and come into play on tee shots and approaches. Castlewood operates as a private club and has served the Pleasanton community for over five decades. The club added a second eighteen, the Valley Course, in later years. The Hill Course remains the original Bell design and reflects the architectural style of California golf in the late 1960s, when designers worked to balance challenge with playability across varied terrain. The course provides views of the surrounding hills and maintains the character of its era while serving the club's membership.