Granite Lake – Bertha May Lake loop from Big Creek Campground

03:30

29.1km

1,130m

Mountain biking

Hard mountain bike ride. Very good fitness required.

Last updated: November 3, 2026

Tips

Includes very steep uphill segments

You may need to push your bike.

After 14.2 km for 1.68 km

After 21.2 km for 1.40 km

Waypoints

Start point

Get Directions

20.0 km

Granite Lake

Highlight • Lake

Granite Lake is located just after Bertha Lake, and though both are beautiful lakes, Granite Lake is often the best choice for a dip in the water. After Granite Lake, you can follow the trail to Cora Lake, which is a less-trafficked trail, so it can be more narrow and not so easy to navigate.

Tip by

20.6 km

Bertha May Lake

Highlight • Lake

Bertha May Lake is a stunning and easily accessible destination in Mount Rainier National Park. The lake has green, crystal-clear water with a surrounding forest that gives a sense of tranquility, and is a good place for fishing.

Tip by

29.1 km

End point

Way Types & Surfaces

Way Types

14.7 km

11.4 km

2.87 km

171 m

Surfaces

14.7 km

9.69 km