Mason, Island, & Rainbow Lakes
ElevationAscent: 2,772' 845 m
Descent: -2,771' -845 m
High: 4,429' 1,350 m
Low: 2,207' 673 m
GradeAvg Grade: 10% (6°)
Max Grade: 42% (23°)
Popular runs nearby
Mailbox Peak Trail
9.7 mi 15.5 km • Out and Back • 3,848 ft Ascent 1173.02 m Ascent
10.8 mi 17.4 km • Out and Back • 2,443 ft Ascent 744.49 m Ascent
Middle Fork Out-and-Back
11.6 mi 18.7 km • Out and Back • 991 ft Ascent 302.16 m Ascent
YETI 100 Mile Endurance Run Washington
98.9 mi 159.2 km • Out and Back • 7,793 ft Ascent 2375.45 m Ascent
Taylor Mountain Loop
12.8 mi 20.5 km • Loop • 1,924 ft Ascent 586.42 m Ascent
19.5 mi 31.3 km • Out and Back • 2,603 ft Ascent 793.54 m Ascent
“Great trail to three beautiful lakes with awesome views.”— Mark Davidson
Features Lake · River/Creek · Views · Waterfall
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
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.
Local Club: Washington Trails Association
May 26, 2020: Walking Through Past and Present
May 22, 2020: Making Memorial Day Memories from Your Home Basecamp
Land Manager: USFS - Mt. Baker-Snoqualmie National Forest Office