Griffith Quarry Historic Park is a 23-acre park located in Penryn, California, that was once the site of a granite quarry that supplied granite for buildings such as the State Capitol Building in Sacramento. Today, the park offers visitors a glimpse into the history of the area and many outdoor recreational opportunities.

One of the main reasons to visit Griffith Quarry Historic Park is to see the remnants of the old quarry, such as the towering granite walls and the quarry pond. Visitors can also take a self-guided tour of the park to learn about the quarry's history and see artifacts from the mining era.

In addition to the quarry, visitors can also enjoy hiking and mountain biking on the park's trails, fishing in the pond, and picnicking in the shaded areas. The park also hosts events throughout the year, including a historic festival and a nature walk.

Interesting facts about the quarry include the fact that it was one of the largest granite quarries in California, and that the granite from the quarry was used in many prominent buildings throughout the state. The quarry was also the site of a major labor strike in 1900, when workers protested poor working conditions and low pay.

The best time of year to visit Griffith Quarry Historic Park is in the spring or fall, when the weather is mild and the park is less crowded. The park is open year-round, but some of the trails may be closed during wet weather.

Overall, Griffith Quarry Historic Park is a unique and interesting destination for anyone interested in history, outdoor recreation, or just a peaceful escape from the city.