The Kalama River is a vibrant waterway in southwest Washington, originating on the western slopes of Mount St. Helens and flowing approximately 45 miles westward to join the Columbia River near the town of Kalama. This glacier-fed river drains a watershed of about 205 square miles, carving through forested canyons and volcanic landscapes.

For whitewater enthusiasts, the Kalama offers several distinct paddling sections. The upper reach from the 6450 Bridge to Gobar Creek provides 15 miles of exciting Class II-III rapids, including the notable Double Drop. Below this, the middle section from Gobar Creek to Lower Kalama Falls offers a more relaxed float. The most popular and challenging run is the 2.5-mile Lower Kalama Falls to Red Barn stretch, featuring Class III-IV rapids that are runnable across a wide range of flows. The river's difficulty varies from Class II to IV, with some Class V rapids at higher water levels. Intermediate to advanced paddling skills are required for most sections.

The Kalama is typically paddled from late fall through early summer, with optimal conditions often found in spring when snowmelt increases water levels. Summer flows can be low, though the lower section often remains navigable.

The river corridor supports diverse wildlife, including elk, black bear, and various bird species. Steelhead and salmon runs are significant, making the Kalama a renowned fishing destination. Key landmarks include the dramatic Lower Kalama Falls and the Kalama Falls Fish Hatchery.

Primary access points are found along Kalama River Road, with the town of Kalama serving as the nearest urban center. The upper put-in at the 6450 Bridge is about 30 miles northeast of Kalama, while the popular lower section put-in is accessed via a fisherman's trail below Lower Kalama Falls.

Historically, the Kalama River valley was home to Native American tribes and later became an important route for fur traders and settlers. Today, it plays a crucial role in local ecosystems and recreation.

Paddlers should be aware of potential wood hazards, especially in the upper sections, and cold water conditions year-round. Some areas may require permits or have seasonal restrictions due to fish spawning.

While primarily suited for day trips, adventurous paddlers can link multiple sections for longer journeys, though camping options are limited. The Kalama River offers a thrilling paddling experience set against the backdrop of Washington's dynamic volcanic landscape.