Hidden Valley Golf Course sits in Cottage Grove, a small city in Oregon's Willamette Valley, roughly twenty miles south of Eugene. Designed by Ray Vincent and opened in the mid-1970s, the course occupies rolling terrain characteristic of the region's transition zone between valley floor and the foothills of the Cascade Range. The layout takes advantage of natural elevation changes and wooded corridors that frame many holes, creating a parkland setting typical of Pacific Northwest municipal and daily-fee courses from this era. Vincent's design reflects the practical approach common to regional courses built during the 1970s golf boom—straightforward routing that works with the land rather than imposing dramatic earthmoving, with moderate length and strategic interest suited to a wide range of players. The course features a mix of tree-lined fairways and more open holes where the surrounding valley landscape becomes visible. Water comes into play on several holes, and the greens vary in size and contour to provide different short-game challenges. Hidden Valley serves as an accessible public facility for the Cottage Grove community and visitors exploring the southern Willamette Valley. The course fits comfortably within Oregon's network of affordable daily-fee layouts, offering a straightforward test of golf in a wooded, hilly setting without pretense. Its character reflects both the natural beauty of the region and the mid-century design philosophy that prioritized playability and maintenance practicality over dramatic features.