Thunder Lake
Backpacking2 days11.7 mi (round-trip)
Itinerary
Wild Basin Trailhead
5.8 mi • 2,200 ft gain
Thunder Lake
5.8 mi • 100 ft gain
Wild Basin Trailhead
How to get a permit
This trip requires a Rocky Mountain National Park Wilderness Permit. Reservations depend on your start date:
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Trips starting between May 1 and October 31
Permits required. Quota in effect.
1st option
Online reservations
Closes 3 days ahead Passed
Book Release
Mar 1 at 8 AM MST Passed
2nd option
In-person reservations
Opens day of 
Unclaimed permits only
Permit details
Here is how to fill out the Rocky Mountain National Park Wilderness Permit application:
| Starting Area | Wild Basin | 
|---|
| 1st Night Campsite | Thunder Lake | 
|---|
| Entry Point | Wild Basin | 
|---|
| Exit Point | Wild Basin | 
|---|
Select a start date
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