Betty Lake is a stunning alpine lake perched high in the Indian Peaks Wilderness of Boulder County, earning a perfect 5.0 rating from every visitor who makes the trek. Known for its wildflower displays, rugged mountain backdrop, and backcountry fishing, Betty Lake rewards hikers willing to put in the elevation gain with one of the Front Range's most scenic high-country destinations.
The hike to Betty Lake follows a trail that also provides access to nearby Bob Lake and King Lake, making it possible to visit multiple alpine lakes in a single outing. The route climbs steadily through subalpine forest and opens into high meadows blanketed with wildflowers during July and early August. One visitor described this as one of the best wildflower hikes on the entire Front Range, and the colorful display of columbine, paintbrush, and alpine sunflowers confirms that reputation.
Fishing at Betty Lake draws anglers looking for a backcountry experience. The lake holds fish, though catching them requires patience and the right approach. Fly fishing is the preferred method at this elevation, and the remote setting means you will share the water with far fewer anglers than at drive-up reservoirs. The compressed alpine fishing season runs from roughly late June through September, depending on how quickly the snowpack melts.
Mosquitoes are a well-documented challenge at Betty Lake during summer. Multiple visitors report aggressive mosquito activity, particularly on warm days. Bring a strong repellent and consider long sleeves and a head net if visiting in July or August. The bugs tend to subside as evening temperatures drop.
There are no developed facilities at Betty Lake. No restrooms, established campsites, or fire rings exist at the lake. Backcountry camping is possible with proper Leave No Trace practices, and an Indian Peaks Wilderness permit may be required for overnight stays during peak season. Check current regulations with the U.S. Forest Service before planning an overnight trip.
Betty Lake is best visited mid-summer through early fall when the trail is snow-free and wildflowers are at their peak. The combination of a challenging but achievable hike, world-class wildflower viewing, and backcountry fishing in a wilderness setting makes Betty Lake one of Boulder County's most rewarding alpine destinations. Pair it with side trips to Bob Lake and King Lake for a full day of high-country exploration.