King County, Washington, United States
16.5 miles (26.6 km) · 3,686 ft elevation gain · Loop · trail · Route
Alpine Lakes Loop (WA) is a 16.5-mile loop route in King County, Washington, United States, gaining 3,684 feet of elevation. The route follows a up-and-over elevation profile. The terrain breaks into 5 distinct sections including 3 significant climbs. The longest climb covers 4.1 miles gaining 2,293 feet at an average 11.0% grade. About 49% of the terrain is runnable, with significant hiking sections. The route opens with a climb and finishes with a descent.
| Distance | 16.5 mi (26.6 km) |
| Elevation gain | 3,686 ft (1,124 m) |
| Average gain | 223 ft per mile (42 m per km) |
| Longest climb | 9.4 mi, 2,753 ft of gain |
| Steepest climb grade | 19.2% |
| Runnable | 50% of the route |
| Climbs / descents | 3 climbs, 2 descents |
| Profile shape | Up, then down |
| Difficulty score | 13.6 of 100 |
| Surface | trail |
| Route shape | Loop |
| Type | Route |
| Grade band | Share of route |
|---|---|
| Flat | 11% |
| Mild uphill | 10% |
| Moderate uphill | 10% |
| Steep uphill | 23% |
| Mild downhill | 19% |
| Moderate downhill | 10% |
| Steep downhill | 17% |
Alpine Lakes Loop (WA) has 3,686 ft (1,124 m) of elevation gain over 16.5 miles (26.6 km). That averages 223 ft of gain per mile.
The difficulty score for Alpine Lakes Loop (WA) is 13.6 of 100. That is harder than 80.5% of routes at a similar distance. About 50% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.
The longest climb on Alpine Lakes Loop (WA) runs 9.4 miles (15.2 km) and gains 2,753 ft (839 m). The steepest climb grade on the route is 19.2%.
Preview this trail in 3D flyover, view the elevation profile, and explore the segment breakdown.
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