St. Croix

The St. Croix National Scenic Riverway is a federally protected corridor encompassing 252 miles of the St. Croix and Namekagon Rivers along the Wisconsin-Minnesota border, representing one of America's premier wild and scenic waterways. Established in 1968 as one of the original eight rivers protected under the Wild and Scenic Rivers Act, the riverway was created through the advocacy of Senators Gaylord Nelson of Wisconsin and Walter Mondale of Minnesota to preserve this exceptional waterway for future generations. The St. Croix and its major tributary, the Namekagon, flow through diverse landscapes from the northwoods of Wisconsin to the bluffs overlooking the Mississippi River, offering opportunities for canoeing, kayaking, fishing, hiking, and wildlife observation. The riverway corridor protects not just the water itself but adjacent lands that maintain the rivers' scenic and ecological integrity. From Class II rapids suitable for novice paddlers to peaceful stretches for contemplative floating, the St. Croix offers experiences for all skill levels. The combination of clean water, accessible paddling, rich wildlife, and geologic diversity makes this one of the most significant protected rivers in the Midwest.

The St. Croix National Scenic Riverway supports remarkably diverse wildlife populations across its 252-mile corridor. The clean river waters shelter native freshwater mussels, an indicator species of water quality, along with dragonflies and diverse fish populations. The upper St. Croix is nationally renowned as a smallmouth bass fishery, while other species including walleye, northern pike, sturgeon, muskellunge, and catfish attract anglers throughout the system. Overhead, Bald Eagles and Ospreys are commonly observed hunting along the river corridors, perching in shoreline trees, and nesting in the riparian forest. Kingfishers patrol the riverbanks, and various warbler species nest in the adjacent woodlands. The diverse habitats from open water to forest to bluff create niches for numerous species. Closer at hand, visitors may glimpse raccoons, red and gray foxes, white-tailed deer, and occasionally black bears along the shoreline. The riverway corridor serves as a migration route for wildlife, connecting habitats and allowing species to move through the landscape. The protection of lands along the rivers ensures these wildlife populations have the habitat continuity needed to maintain healthy populations. Beaver activity is evident along many stretches, with their dams and lodges visible from the water.

The plant communities along the St. Croix National Scenic Riverway reflect the diversity of landscapes the river traverses, from northern forests to river bluffs to floodplain wetlands. The upper reaches flow through northern hardwood and conifer forests, with white and red pines, paper birches, and maples creating a northwoods character. The river itself is bordered by riparian vegetation including willows, alders, and other water-loving species that stabilize banks and provide wildlife habitat. Wetlands along the corridor support sedges, rushes, and emergent aquatic plants critical for fish spawning and waterfowl nesting. The lower St. Croix passes through increasingly dramatic bluff country, where oak-hickory forests crown the heights and diverse understory plants fill the slopes. Native plants throughout the riverway reduce runoff from rainfall, add colorful wildflowers that attract native insects and birds, and maintain the scenic character protected under the Wild and Scenic Rivers Act. Spring brings ephemeral wildflowers to forest floors, while summer features prairie flowers on bluff prairies. Fall color is spectacular, particularly in October when the mixed forests transform and reflect in the dark river waters. The diversity of plant communities supports the riverway's rich wildlife populations.

The geologic story of the St. Croix National Scenic Riverway is exceptionally rich, spanning over a billion years of Earth history. The most ancient rocks exposed along the riverway date to the Midcontinent Rift approximately one billion years ago, when the North American continent began to split apart. Lava flowing from this rift cooled to form basalt, which is exposed along portions of the river. Layered atop this ancient basement are sedimentary rocks including Cambrian sandstones and Ordovician carbonates, deposited when the region lay beneath vast inland seas approximately 500 million years ago. The most dramatic geologic chapter occurred during the Pleistocene glaciations, when continental ice sheets advanced and retreated across the region. During glacial retreat approximately 10,000 years ago, proglacial lakes formed at the retreating ice front, and the St. Croix gorge was carved by catastrophic floods from Glacial Lake Duluth draining toward the Mississippi. Other glacial features along the riverway include moraines, glacial outwash, till deposits, and lake clays. The distinctive Dalles of the St. Croix gorge near Taylors Falls showcases dramatic basalt cliffs carved by these ancient floods.

The St. Croix National Scenic Riverway experiences a humid continental climate with four distinct seasons that significantly affect river conditions and recreational opportunities. Summers are the primary season for paddling, with warm temperatures in the 70s and 80s°F creating pleasant conditions on the water. Water levels fluctuate seasonally and with precipitation, affecting navigability of different river sections; spring snowmelt typically produces higher water levels, while late summer may see lower flows. Spring and fall offer excellent paddling with reduced crowds, though visitors should be prepared for variable weather and colder water temperatures. Spring brings spectacular wildflower displays and bird migration. Fall color peaks in late September through October, making autumn paddling particularly scenic. Winters are cold, with river sections freezing and snow covering the landscape; ice thickness must be verified before any winter activities on the ice. The 252-mile length of the riverway means conditions can vary significantly between upper and lower sections, with the northern reaches experiencing cooler temperatures and earlier ice-up. Severe weather including thunderstorms can develop rapidly in summer; paddlers should monitor forecasts and be prepared to leave the water if conditions deteriorate.

Human presence along the St. Croix River extends back thousands of years, with archaeological evidence of Native American occupation including approximately fifteen thousand mounds built by Woodland peoples on the bluffs above the river. These burial and ceremonial mounds reflect the cultural and spiritual significance of the river corridor to indigenous communities. The Ojibwe and other tribes utilized the rivers for transportation, fishing, and access to natural resources. European interaction began with French fur traders who established trade networks along the waterways beginning in the 17th century. An 1837 treaty with the Ojibwe opened the region to European-American settlement, initiating rapid transformation of the landscape. The fur trade gave way to the timber industry, which dominated the 19th century as vast pine forests were logged and floated down the rivers to sawmills. The St. Croix became one of the major log-driving rivers of the northwoods, with millions of board feet of lumber transported downstream. Towns like Stillwater, Osceola, and St. Croix Falls developed as logging centers. As the timber boom ended, the rivers' recreational and scenic values became increasingly recognized.

The St. Croix National Scenic Riverway was established through the Wild and Scenic Rivers Act of 1968, making it one of the original eight rivers protected under this landmark conservation legislation. The creation of the riverway resulted largely from the advocacy of Senator Gaylord Nelson of Wisconsin and Senator Walter Mondale of Minnesota, who recognized the exceptional values of the river and the threats posed by potential dam construction and shoreline development. The National Park Service was given responsibility for managing the protected corridor in cooperation with state agencies. The original 1968 designation protected 200 miles of the St. Croix and Namekagon Rivers. In 1972, an additional 27 miles of the Lower St. Croix were added to the system, becoming the first riverway segment added to the National Wild and Scenic Rivers System since its inception. The boundaries include not just the water but adjacent lands necessary to protect the rivers' scenic, recreational, and ecological values. Today, the riverway is co-managed by the National Park Service, the Wisconsin and Minnesota Departments of Natural Resources, and various local governments, with regulations designed to protect water quality, scenic views, and natural habitats while providing sustainable recreational access.

The St. Croix National Scenic Riverway offers 252 miles of paddling ranging from beginner-friendly calm water to Class II rapids for more experienced canoeists and kayakers. The Namekagon River provides excellent novice paddling with few hazards and numerous access points. The upper St. Croix features some whitewater sections and the nationally renowned smallmouth bass fishery. The lower St. Croix widens into a broader, slower river with impressive bluffs along its banks. On the Park Service grounds, seven hiking trails provide land-based recreation, including the Trego Nature Trail, Sandrock Cliffs, Osceola Loop, Trego Lake Trail, and others. Some trails are designated for cross-country skiing in winter. The North Country National Scenic Trail passes through portions of the riverway corridor. The Interstate State Park at the Dalles of the St. Croix showcases dramatic basalt cliffs where ancient floods carved a gorge, offering both Wisconsin and Minnesota units connected by hiking trails and stunning geological features. Visitor centers at St. Croix Falls and Trego provide orientation, exhibits, and interpretive programs. Historic sites including old logging camps and indigenous mound sites add cultural heritage dimensions to the natural experience.

The St. Croix National Scenic Riverway is accessible at numerous points along its 252-mile length, with visitor centers, campgrounds, and canoe landings maintained by the National Park Service, state agencies, and local governments. The main visitor center is located in St. Croix Falls, Wisconsin, open seasonally from mid-April through October, typically 10 a.m. to 5 p.m. daily including federal holidays. An additional visitor center in Trego, Wisconsin operates during summer months. These facilities provide orientation, exhibits, trip planning assistance, and interpretive programs. Numerous campgrounds along the riverway accommodate both car-accessible and paddle-in camping, ranging from developed sites with facilities to primitive riverside camps. Canoe and kayak rentals and shuttles are available from private outfitters in communities along the river. The riverway corridor passes through or near several communities including Trego, St. Croix Falls, Osceola, and Stillwater, where food, lodging, and services are available. Interstate State Park offers additional facilities at the Dalles of the St. Croix. There is no entrance fee for the riverway itself, though fees may apply at developed facilities. Visitors should check current conditions and regulations, particularly for specific river sections they plan to paddle.

Conservation of the St. Croix National Scenic Riverway focuses on maintaining the outstanding water quality, scenic values, and ecological integrity that justified its Wild and Scenic River designation. Riverway regulations are designed to protect water quality, provide habitat for birds, fish, and wildlife, and maintain a relatively unspoiled view for millions of visitors. Land management within the corridor limits development and shoreline alteration that could impair scenic or ecological values. Native plantings are encouraged along the shoreline to reduce runoff, attract native wildlife, and minimize the need for mowing and watering. The Wild Rivers Conservancy and other partner organizations work to protect additional lands within the watershed that affect river quality. Invasive species management addresses threats to native plant and animal communities, with particular attention to aquatic invasives that could harm the river's fisheries and mussel populations. Climate adaptation planning addresses projected changes in precipitation patterns and water temperatures that may affect the river ecosystem. Water quality monitoring tracks conditions throughout the system, providing data to guide management decisions. Public education programs help visitors understand their role in protecting the riverway, including proper waste disposal, respecting wildlife, and minimizing disturbance to shorelines and sensitive habitats.