Loop from Olympia to the Mima Mounds

The route is approximately 58.7 kilometers (about 36.5 miles) long and typically takes around 2 hours and 32 minutes to complete by race bike, depending on your pace and stops.

This route is considered a moderate road ride, suitable for cyclists with good fitness. It involves an elevation gain of about 358 meters (1,175 feet), so some cycling experience is recommended.

The majority of the route consists of well-paved surfaces, with approximately 99% paved and 1% unpaved sections. You can expect a smooth ride for most of the loop.

The primary scenic attraction is the Mima Mounds Natural Area Preserve, featuring distinctive grass-covered hillocks and Puget prairie grasslands. You'll also pass by the Washington State Capitol in Olympia. On clear days, you might even catch views of Mount Rainier and Mount St. Helens.

Spring is an excellent time to visit, as you can see native plants like camas and other wildflowers in bloom. Clear days offer the best chance for distant mountain views. The route is generally accessible year-round, but check weather conditions during winter months.

You can typically find parking in Olympia, which serves as the starting and ending point for this loop. Specific parking areas may vary, so it's advisable to check local parking options in Olympia before your ride.

There are generally no entrance fees or permits required to visit the Mima Mounds Natural Area Preserve itself. However, please note that bicycles are not permitted on the specific trails within the preserve, but you can enjoy observation decks and interpretive signs.

While the road cycling loop itself is generally accessible, regulations regarding dogs within the Mima Mounds Natural Area Preserve may vary. It's best to check the preserve's official guidelines regarding pets before bringing your dog.

As this is a road cycling loop, facilities like restrooms and water stops are primarily available in Olympia at the start/end of the route. There may be limited options along the rural sections, so it's recommended to carry sufficient water and snacks.

Yes, the route briefly intersects with several other paths. You'll encounter sections of the I-5 Bike Trail, Black Lake Meadows Trail, Watershed Park Loop, and Heritage Park Hillside Trail at various points along the loop.

The preserve is home to the enigmatic Mima Mounds, which are mysterious, evenly spaced grass-covered hillocks. These unique geological formations are a National Natural Landmark, and interpretive signs at the preserve explain various hypotheses about their origin and the area's ecology.