Parking
The Smoky Bottom Trailhead lot is just beyond Glines Canyon Spillway Overlook. Parking capacity and fee details were not found.

Olympic National Park, WA
Follow the Elwha restoration story into the former Lake Mills valley.
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Olympic Tour Guide
Parkwolf is a GPS audio tour guide for Olympic National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
See the Olympic audio tourMore stories near here in the app
Trail guide
Smokey Bottom Trail is a 1.9-mile one-way natural-surface walk from the lot just beyond Glines Canyon Spillway Overlook into the valley above the former Glines Canyon Dam. Retrace the same path for 3.8 miles round trip from that trailhead. Allow about 2.5 hours for the named trail. The appeal is seeing the Elwha's exposed former lakebed and riverbanks returning to a wilder state, not reaching a summit or waterfall.
Lake Mills formed behind Glines Canyon Dam. A 1992 restoration law set the watershed recovery in motion, and removal of both Elwha dams was complete by 2014. With the reservoir gone, the river runs through exposed sediment while natural growth and planted vegetation recolonize the banks. Salmon began spawning in the park within months of dam removal, part of the larger recovery this short walk lets you understand.
The mapped Smokey Bottom line ends in the former reservoir landscape, but the official descriptions do not give that point a named destination. Nearby Old West Lake Mills and lower Lake Bed paths appear in longer West Lake Mills itineraries; those routes combine other segments and do not change Smokey Bottom's 1.9-mile one-way distance. Treat this as an out-and-back and do not assume the neighboring paths form a loop. Pets are not permitted on this trail.
Wildlife
710 sightingsOlympic MarmotMost seen around 11 AMSighting map
30 sightingsHumpback WhaleMost seen around 6 PMSighting map
42 sightingsGrey WhaleMost seen around noonSighting map
23 sightingsMountain LionMost seen around 8 PMSighting map
71 sightingsMountain GoatMost seen around 7 AMSighting map
306 sightingsBald EagleMost seen around 11 AMSighting mapSighting maps show where each species has been reported across Olympic. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ChallengingElwha to Hurricane Hill Trail11.6 mi · 12 hr · 1 mi awayA hard forest climb opens into meadows with Bailey Range views.
ChallengingHappy Lake Ridge Trail9.5 mi · 9.5 hr · 1.8 mi awayA steep ridge climb opens to alpine lakes and far-reaching views.
ChallengingHappy Lake Trail9.6 mi · 9 hr · 1.8 mi awayA steep ridge climb drops to a grassy alpine lakeshore.
EasyElwha Forest Loop Trail0.4 mi · 15 min · 1.8 mi awayA short forest path whose mapped line isn't a loop.
ChallengingCascade Rock Trail4 mi · 4 hr · 2.1 mi awayA steep forest climb to a mossy rock above the Elwha.
ModerateSmokey Hill Trail0.8 mi · 1.3 hr · 2.2 mi awayA short, steep drop into the Elwha, with the same climb back.
ChallengingElwha River Trail to Lake Margaret55.4 mi · 1.2 days · 2.6 mi awayLong Elwha wilderness trek to Lake Margaret with a required river ford.
ModerateHumes Ranch and Geyser Valley Loop6 mi · 4 hr · 2.6 mi awayRiver flats, canyon forest and a 1905 homestead on one loop.
Sight · 0.1 mi awayGlines Canyon Dam OverlookThe reservoir is gone; the river now runs through its canyon.
Sight · 2.8 mi awayMadison FallsA short Elwha Valley walk ends below a 60-foot waterfall.
Sight · 4.4 mi awayOlympic Hot SpringsA long Elwha Valley walk or bike-and-hike to hot springs.
Picnic area · 4.6 mi awayHurricane Hill Picnic Areas A and BA summer picnic stop with mountain views along Hurricane Hill Road.
Sight · 5.3 mi awayCirque Rim OverlookA quick paved walk to broad views across the Strait.
Sight · 5.3 mi awayHurricane RidgeBailey Range views from the road-end meadow.
Sight · 7 mi awayElwha Dam Interpretive SiteA compact pavilion tells the story of the Elwha's dam removal.
Campground · 8.2 mi awayHeart O' the Hills CampgroundA quiet forest base for Hurricane Ridge and a woodland walk.Parkwolf’s Olympic ranking