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 Aug 3: Clear, high 77°F / low 52° · precip 0% · wind 3 mph · sunrise 5:50 AM · sunset 8:42 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

ClearTemperature 77°F52°
Precip0%Wind3 mphUV7Humidity65%
Hourly temperature
80°50°
Sunrise 5:50 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:42 PM
Tue 85°58°
Wed 90°61°
Thu 94°60°
Fri 88°59°
Sat 85°57°
Sun 84°58°

Sunset

The best sunset spot on this hike is 0.2 mi in (~5 min). Leave by 8:17 PM for the 8:42 PM sunset. Back at your car by 9:02 PM — 16 min before dark.

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