Snoqualmie Hiking Weekend: Two Parking Passes, Six Trails and One Alpine Lake
Put the wrong parking pass on your dashboard along I-90 and, as far as the rangers are concerned, you have not paid for parking at all. That is the first lesson of a Snoqualmie hiking trip. The corridor from North Bend up to Snoqualmie Pass is split among city, state and federal land managers, and each one runs its own parking rules. The trails themselves are easier to love. In one weekend you can stand on a cliff above Rattlesnake Lake, walk through mossy forest to a river gorge, test yourself on Mount Si and drop into a granite basin holding the most visited lake in the Alpine Lakes Wilderness. This guide pairs six trails into a two-day plan, marks the hard ones clearly and explains which pass each trailhead needs.
Timing the trip: low trails all year, high trails in late summer
Elevation decides the calendar here. The North Bend trails sit low. Little Si, Twin Falls and Rattlesnake Ledge are all hikeable through most winters, which is why their lots stay busy on gray January weekends. Mount Si can be climbed most of the year too, but snow builds up on its upper trail from late autumn through spring, and microspikes are often needed above the halfway point even when the trailhead is bare. Up at the pass, the calendar gets shorter. Snow Lake's realistic window is mid July through October, and steep snowfields below the saddle can last into July. Franklin Falls works in every season, but in winter it becomes a snowshoe route, the access road closes and the walk from the gate is much longer. For a weekend that includes both levels, late July through early October is the best fit. Early autumn, in particular, brings a clear trail to Snow Lake, steadier weather and smaller summer crowds.
Rain, mud and what to wear
From October through May, the lowland forests hold water and trails like Little Si turn slick with roots and mud. Boots with real tread work better than trail runners for most of the year, and poles help on descents more than the modest mileage would suggest. At the pass, weather changes quickly across open basins. Carry layers even when the forecast looks warm. The same goes for a late-season Franklin Falls visit, where the first snow can change the approach from one weekend to the next, so check recent trip reports before you go.
The six trails and how hard each one is
Along the North Bend end of the corridor, Rattlesnake Ledge is the default first hike: 4 miles round trip with 1,160 feet of gain on a wide, well-maintained trail to a rock shelf over the lake. It is rated moderate, but the ledge is an unfenced cliff where people have died, so keep well back from the edge. Little Si covers the same 4 miles with about 1,174 feet of gain through dense moss and past basalt climbing walls to a rocky knoll. Twin Falls is the easy one, at 2.6 miles and 587 feet along the South Fork Snoqualmie River to a waterfall in a narrow gorge. Mount Si is the hard one. It is strenuous, with 8 miles and 3,150 feet of steady climbing to a boulder field, and above that the Haystack, an exposed class 3 scramble that most hikers leave alone. At the pass, Franklin Falls is an easy 2-mile round trip with about 400 feet of gain to a waterfall you can walk right up to. Snow Lake is 6.7 miles with about 1,700 feet of gain, and the trail drops into the lake basin, so you finish the day climbing back out. Leashed dogs are allowed on all six trails.
A partial closure at Twin Falls
Washington State Parks has posted that the Lower Falls Viewpoint on the Twin Falls Trail is currently closed after storm damage to the structure. The trail itself is not listed as closed, but plan on the other viewpoints and check Olallie State Park's alerts page before you go for updates.
Rattlesnake Ledge or Little Si?
On paper they are nearly identical, with 4 miles and a little under 1,200 feet of gain each. The difference is in the details. Rattlesnake needs no pass, has toilets at the trailhead and ends at a big lake view, but it is one of the busiest trails in western Washington, and its cliff edge demands attention. Little Si needs a Discover Pass and ends at a smaller view, but its moss-heavy forest and the climbers on the basalt walls make it the more atmospheric walk.
A two-day Snoqualmie plan
Split the weekend by elevation and by pass. Spend one day up at Snoqualmie Pass, where both trailheads are on national forest land and take the same federal pass. Spend the other day in the North Bend valley, where one pass covers the state-managed trailheads. That way you only need to deal with one parking system each day. Whichever order you choose, arrive early. The Snow Lake lot fills by early morning all summer, Franklin Falls' small lot fills very early, and the Mount Si lot is often full on summer Saturdays after about nine. Once you pass the saddle above Snow Lake, you have entered the Alpine Lakes Wilderness. Groups there are capped in size, and overnight stays are limited to established campsites. That matters if you are bringing a larger group from a club or meetup. On the Mount Si day, decide in advance whether anyone plans to try the Haystack, and agree that wet or icy rock means everyone stops at the boulder field.
Day 1: Snow Lake and Franklin Falls
Start at the Alpental trailhead for Snow Lake and save energy for the climb back over the saddle on the way out. If snow still covers the traverse below the saddle and you do not have traction or experience, make the saddle your turnaround. In the afternoon, drive back down to exit 47 for an easy walk to Franklin Falls. The last approach to the falls has spray-slick rock steps, so take it slowly. Both trailheads use a Northwest Forest Pass.
Day 2: Rattlesnake Ledge or Little Si, then Twin Falls
Hike Rattlesnake Ledge at first light, when you have the best chance of getting a parking spot, or choose Little Si if you already have a Discover Pass and want a quieter forest trail. Finish with Twin Falls in Olallie State Park, open 6:30 a.m. to dusk. Fit, experienced hikers can make Mount Si the whole day instead. It takes most people three to five hours and is the local benchmark climb.
Camping and services along I-90
The Forest Service runs two summer campgrounds close to the pass-area trails, and both are reserved through Recreation.gov. Denny Creek Campground, one of the oldest on the Mt. Baker-Snoqualmie National Forest, has 33 sites along the Snoqualmie River and lets you walk to the Franklin Falls and Wagon Road trails. Tinkham Campground, on the South Fork Snoqualmie, has 47 single sites and an easy half-mile nature trail. Both list May through September as their season of use, so they are closed for an October weekend. Olallie State Park, home to Twin Falls, is day-use only and has no camping. Outside the summer months, the simplest option is to base yourself in North Bend or drive back to Seattle each night, since Rattlesnake Ledge is only about forty minutes from the city. For fuel, groceries and a meal after the hike, North Bend and Snoqualmie are the natural stops at the lower end of the corridor. Fill the tank before heading up to the pass.
Food storage and fires
The Mt. Baker-Snoqualmie National Forest has a food storage order in effect, and its campgrounds allow fires only in designated rings. Washington State Parks has posted burn bans at its parks this season. Check both agencies' alerts before you plan a campfire, and never leave food out at camp or around the Snow Lake basin, where the wildlife is used to people.
Discover Pass or Northwest Forest Pass: who needs what
This is where most first trips go wrong. Washington runs two separate parking systems, and one does not work in place of the other. The Discover Pass covers state-managed land, including Washington State Parks and Department of Natural Resources land. Mount Si and Little Si are Department of Natural Resources trailheads, and Twin Falls is in Olallie State Park, so all three need a Discover Pass. Washington State Parks lists it at $10 for one day or $45 for a year. The Northwest Forest Pass, or an interagency annual pass, covers developed Forest Service sites. Snow Lake's Alpental trailhead and Franklin Falls are both on the Mt. Baker-Snoqualmie National Forest, so they need the federal pass. The Forest Service states plainly that the Discover Pass is not valid on national forest land. Rattlesnake Ledge is the exception. It sits on city and county land next to Seattle's watershed and needs no pass, which helps explain why it is so crowded.
Buying a pass at the last minute
If you forget the federal pass, the Forest Service sells digital day passes through Recreation.gov, and its credit-card-only fee machines at the Franklin Falls and Snow Lake trailheads and the Snoqualmie Pass Visitor Center sell $5 day passes. For state land, buy a Discover Pass online before you leave, then display it at Mount Si, Little Si or Olallie. If you want company on the drive and help sorting passes, TrailMates can help you find Seattle hikers matched by pace and skill.
Frequently Asked Questions
Which Snoqualmie-area hikes need no parking pass?
Rattlesnake Ledge is the main one, with free parking and no state or federal pass required. Mount Si, Little Si and Twin Falls need a Discover Pass, while Snow Lake and Franklin Falls need a Northwest Forest Pass or interagency pass.
What is the best Snoqualmie hike for beginners?
Twin Falls and Franklin Falls are both rated easy and are under 3 miles round trip. Rattlesnake Ledge and Little Si are moderate steps up. Mount Si is strenuous, with 3,150 feet of gain, so it is best saved for later.
Can I do a Snoqualmie hiking weekend in winter?
Yes, if you stay low. Little Si, Twin Falls and Rattlesnake Ledge are usually hikeable in winter, although ice can form on ledges and stairs. Snow Lake is out of season, and Franklin Falls becomes a snowshoe route with a longer approach from the road closure.