About This Route
The Lewis River Channel connects Lewis Lake to remote Shoshone Lake, one of the few river sections open to kayaking in Yellowstone per NPS regulations. Launch from Lewis Lake boat ramp after AIS inspection, paddle 3 miles upstream through the narrow, meandering channel flanked by lodgepole pines. Emerge into Shoshone's 8,000-acre expanse, ideal for circumnavigating its bays. This 6-10 hour adventure suits experienced paddlers; currents can reach 2-3 mph, and remoteness means self-reliance. Spot otters and bald eagles, but watch for fallen logs blocking narrows.
Safety Considerations
Park rivers close to non-motorized craft except this channel; verify seasonal openings via NPS boating page. Water temps stay below 55F, heightening cold shock risk, as REI expert guides warn. Rapids Class I-II possible in high water; scout strainers from logs. Winds funnel through the channel, creating standing waves. Mandatory USCG PFDs; test self-rescue in eddies before committing. Bear activity peaks here; store food in bear canisters overnight if backpacking to Shoshone Geyser Basin. Launch only Memorial Day to October 31; avoid thunder storms per river safety protocols.
Essential Gear
ul>li>Type V PFD with spray skirt compatibility (Astral V-Eight)/li>li>Whitewater kayak paddle (Werner Powerhouse)/li>li>Helmet (Sweet Protection Rivager) for channel rapids/li>li>Drysuit (Peak UK Hiko) and neoprene booties/li>li>First aid kit with tourniquet, PLB (Ocean Signal rescueME)/li>li>Bear canister (BearVault BV500) and throw rope/li>/ul>
Emergency Tips
p>Pin risks in channel: portage around strainers. If swamped, ferry to shallow eddies. Use whistle and high-visibility PFD; fire three shots from bear spray canister if no PLB response. Hike out via Lewis River Trail if needed, signaling aircraft with orange ground cloth. Call 307-344-2109 for Lewis Lake Rangers.