Washington County doesn’t have a ton of information on their website about their parks, but they have this brochure that has some good info.
Afton State Park (Hastings)
In the southeast corner of Washington County is Afton State Park with 20 miles of natural-surface hiking trails. 6 miles of those are maintained during the winter months. Woods, prairies, bluffs in the St. Croix River valley.
Big Marine Park Reserve (Marine on St. Croix)
Brown’s Creek State Trail (Grant to Stillwater)
Lovely 6-mile Brown’s Creek State Trail is a paved trail that’s open to foot and bike traffic. There’s also a horse trail that parallels closely along part of it. Forest, parks, Brown’s Creek and the eastern-most mile along the St. Croix River with gorgeous views. It connects to the Gateway State Trail in Grant. Here’s the Brown’s Creek map.
Cottage Grove Ravine Regional Park (Cottage Grove)
Gateway State Trail (St. Paul, Maplewood, North St. Paul, Oakdale)
Lake Elmo Park Reserve (Lake Elmo)
Lake Elmo Park Reserve hosts over 2,000 acres of preserved rolling hills, forest and prairie. There are 20 miles of hiking trails here, much of it on natural surfaces. Some are for hikers only, and there are several miles for combined hikers, mountain bikers and horses. Here’s the Lake Elmo Park map.
Pine Point Regional Park (Stillwater)
Pine Point Regional Park is a peaceful natural area with forest, lakes and marshes. There are 5 miles of multi-use trails here. If you love bird watching this is a great place for you, too! Unfortunately the Park’s web page doesn’t list both the summer and winter maps at the same time. But check back here when you need it.
St. Croix Bluffs Regional Park (Hastings)
William O’Brien State Park (Marine on St. Croix)
William O’Brien State Park has 2,200 acres of hills, woods and wetlands. 12 miles of hiking trails plus the paved 1.5-mile Riverside Trail meander through this beautiful park. Here’s the William O’Brien map.