This is a great multi use park with a wilderness feel literally five minutes off the highway. Rock collecting is fun (But hard work to find the good stuff). The real fun is the challenging and scenic trails for both pedestrians and mountain bikers. Park is dog friendly and good for supervised kids. The trail map is pretty good and trails are getting better marked every year. Plan on spending the afternoon but go back often. Always something new to discover there. UPDATE 4/2023 New signs and maps have been installed on many trails and the map on the parks website is new. Signs now forbid swimming or diving in the quarries. I continue to suggest that new visitors enter park at garfield road entrance as this is by far the best marked and most scenic. It is still easy to get disoriented at the rear entrance unless you know it well. UPDATE 3/2024 Trail markings comtinue to be updated. Today I noticed that some trails are identified by "road signs" with the trail name rather than just a color. Signage is still confusing and I saw one sign saying "you are here" clearly indicating red trail but with a blue blaze painted on the same tree. Google maps does work somewhat within the park but newbies are still best served by remaining on the blue trail and avoiding bike trails or any trails beyond the mining area. Most pf this was still VERY waterlogged today. Still a great destination but know your limits and keep kids on the blue trails where you can see them.