Gem Lake Trail
A steep Lumpy Ridge climb through granite formations to a small rock-bound lake.
Route overview
Gem Lake Trail in Front Range, Southern Rocky Mountains.
Gem Lake climbs steadily from Lumpy Ridge through ponderosa forest and distinctive granite outcrops. The route is shorter than many alpine hikes but gains elevation quickly, has limited shade in places and no dependable water supply.
Trail facts
- Country
- United States
- Region
- Front Range, Southern Rocky Mountains
- Distance
- 3.4 miles / 5.5 km return
- Typical duration
- 2–3 hours
- Difficulty
- Moderate
- Elevation gain
- Not published by official source
- Best season
- Spring through autumn; avoid ice, extreme heat and thunderstorms
- Trail type
- Out and back
Access and logistics
- Permits and access
- Park entrance required; 2026 timed entry may apply during regulated hours
Safety context
Check current official conditions, closures, weather and access rules before departure. Check current official conditions, closures, weather and access rules before departure.
Steep grade, heat, lightning, loose gravel, rock edges and limited parking
Highlights
Rocky Mountain National Park, Gem Lake, Lumpy Ridge, granite hike, moderate trail
Why find a buddy
A partner helps pace the steep ascent and monitor heat or altitude response.
Primary source
Explore and prepare
Discover hikes by intent, read the hiking guides, review hiking safety, prepare a BuddyPack, or browse hiking plans.
Route conditions, access, services and transport can change. Verify time-sensitive information before departure.