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Mason, Island, & Rainbow Lakes



10.5 mile 17.0 kilometer out and back
78% Runnable


Ascent: 2,772' 845 m
Descent: -2,771' -845 m
High: 4,429' 1,350 m
Low: 2,207' 673 m


Avg Grade: 10% (6°)
Max Grade: 42% (23°)


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Trail shared by Mark Davidson

Great trail to three beautiful lakes with awesome views.

Mark Davidson

Features Lake · River/Creek · Views · Waterfall


This is a fairly long out-and-back that features views galore, serene lakes and the stunning beauty of the Alpine Lakes Wilderness.

If you're looking for a shorter/easier run, consider turning around at Mason Lake. If you're feeling rambunctious, tack on the Bandera Mountain Trail for added mileage and views.

Need to Know

Take exit 45 off I-90. Then head up Forest Service Road 9030 until you come to the 9030/9031 junction. Switch onto 9031 where the sign for Ira Spring (Mason Lake) Trail #1038 points. The Parking lot is a good size, but this is a very popular trail since there are so many places to go, so be sure to get there early or you might have a long run to get to the trailhead


The trail starts at the Ira Springs Trailhead and follows the Ira Spring (Mason Lake) Trail #1038. The trail crosses over a few streams, both of which have beautiful waterfalls flowing right on the side of the trail. You'll start to get glimpses of Mt. Rainier after crossing the streams, but once you get above the tree line the views are spectacular! About 3 miles in, you'll come to a fork in the trail that is very well marked. Follow the trail to the left towards Mason Lake.

Continue around the lake following the signs for the "Main Trail." Shortly afterwards you'll turn away from the lake and come to a junction that goes to left to Mt. Defiance (Mount Defiance Trail #1009) and right to Pratt, Rainbow, and Island Lakes (Island-Rainbow Trail). Continue on this trail past a small pond until you come to Rainbow Lake.

This is a beautiful lake and has some amazing scenery. You can then continue on until you come to another junction (Island Lake Trail) that goes toward Island Lake. Straight will take you down to the Pratt Lake Basin. Turn towards Island Lake.

As you continue on the trail you'll catch a glimpse of Pratt Lake. Shortly after you'll arrive at Island Lake. Be sure to check out the waterfall that flows out of Island Lake and eventually flows into Pratt Lake.


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Sep 28, 2019
Scott Milliman
Beautiful run. There was a decent of fresh snow, which was a fun surprise and absolutely stunning. We missed the turn back to Mason lake on our way… 12.5mi — 4h 10m
Jul 29, 2018
Evan Griffith
Jul 1, 2018
Cole DeForest
May 12, 2018
Geneva G
Sep 24, 2017
David Shadle

Trail Ratings

  4.4 from 7 votes


  4.4 from 7 votes
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in Washington


66 Views Last Month
2,269 Since May 8, 2015



Mount Rainier from the Ira Spring Overlook
Jul 17, 2018 near Riverbend, WA
Mason Lake
Jul 1, 2015 near Riverbend, WA
Trail between the overlook and Mason Lake
Jul 17, 2018 near Riverbend, WA
Mason Lake covered in snow
May 8, 2015 near Riverbend, WA
Check out the lower falls on the Ira Spring Trail #1038.
Jun 19, 2017 near Riverbend, WA
View of Rainier just before heading down to Mason Lake
May 8, 2015 near Riverbend, WA