We stayed at the American River Outpost campground for a rafting tour with OARS a few years ago, and it was such a blast! This was our first time whitewater rafting, and it was a great experience. The campground is in Coloma, which is in the heart of Gold Rush country. The guides were knowledgeable and friendly, and we really enjoyed the BBQ on site. If you have some extra time, be sure to check out Marshall Gold Discovery Park, home of Sutter's Mill, and the nearby wine country.