AMBLEWAY Wildest hikes
2023 Mercer Slough with footbridge.jpg
Mark Yasuda · CC BY-SA 4.0
Mercer Slough Nature Park

Mercer Slough & Lake-to-Lake Trail

3.1 mi · ▲ 114 ft · 1 hr 5 min

Mercer Slough & Lake-to-Lake Trail is a 3.1-mile out-and-back in Mercer Slough Nature Park near Factoria, WA. The route reaches Mercer Slough at the turnaround, 1.4 miles in. It is mostly level, with 114 ft of elevation gain, and mostly paved. It scores 0/100 on the Ambleway Wildness scale: paved and peopled.

Elevation

0 mi16 – 115 ft3.5 mi

Getting there

Trailhead: Factoria Trail 47.57955, -122.17038
Nearest town Factoria, WA
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Directions

AMBLEWAYwww.ambleway.com

Mercer Slough & Lake-to-Lake Trail

3.1 mi · ▲ 114 ft · 1 hr 5 min

Elevation 16–114 ft

Out & Back · Mercer Slough Nature Park

Trailhead: Factoria Trail · 47.57955, -122.17038

Weather Sep 20: sunrise 6:54 AM · sunset 7:12 PM

Transit-accessible: I-90 & Richards Rd stop 194 m from the trailhead · Parking lot at the trailhead

  1. Start on Factoria Trail, heading W.
  2. 100 ftContinue straight onto I 90 Trail, heading W.
  3. 0.5 miContinue straight onto Lake-to-Lake Trail, heading N.
  4. 0.8 miTurn left, heading NE.
  5. 150 ftTurn left onto Bellefields Loop Trail, heading NW.
  6. 500 ftPass Mercer Slough.
  7. 500 ftTurn left, heading SW.
  8. 0.1 miReach Mercer Slough, then turn around and head back the way you came.
  9. 0.3 miTurn right, heading E.
  10. 150 ftTurn right onto Lake-to-Lake Trail, heading NE.
  11. 0.8 miContinue straight onto I 90 Trail, heading S.
  12. 0.5 miContinue straight onto Factoria Trail, heading E.
  13. 50 ftArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Trail map, photos and weather for this hike: www.ambleway.com/hikes/mercer-slough-out-back-5-km-6a71

Trail surface

81% paved8% boardwalk8% dirt2% gravel1% unspecified

Weather

Sunrise 6:54 AMSunset 7:12 PM

Sunset

The best sunset spot on this hike is right at the trailhead, so there is no walk out. Be there by 6:52 PM to have the sun's last 20 minutes of sky before it sets at 7:12 PM. Your car is right there — dark at 7:43 PM.

More sunset hikes nearby

Good to know

  • Transit-accessible: I-90 & Richards Rd stop 194 m from the trailhead
  • Parking lot at the trailhead

Other ways to reach this destination

Hikes near Factoria, Washington