Necklace Valley Loop

King County, Washington, United States

25.2 miles (40.6 km) · 7,128 ft elevation gain · Loop · Route

Necklace Valley Loop is a 25.2-mile loop route in King County, Washington, United States, gaining 7,354 feet of elevation. The route follows a up-and-over elevation profile. The terrain breaks into 7 distinct sections including 4 significant climbs. The longest climb covers 9.8 miles gaining 4,253 feet at an average 11.3% grade. About 46% of the terrain is runnable, with significant hiking sections. The route opens with a climb and finishes with a descent.

Route facts

Distance	25.2 mi (40.6 km)
Elevation gain	7,128 ft (2,173 m)
Average gain	283 ft per mile (54 m per km)
Longest climb	9.2 mi, 3,400 ft of gain
Steepest climb grade	46%
Runnable	46% of the route
Climbs / descents	4 climbs, 3 descents
Profile shape	Up, then down
Difficulty score	14.1 of 100
Route shape	Loop
Type	Route

Grade breakdown

Grade band	Share of route
Flat	8%
Mild uphill	13%
Moderate uphill	10%
Steep uphill	22%
Mild downhill	19%
Moderate downhill	6%
Steep downhill	22%

Questions about Necklace Valley Loop

How much elevation gain does Necklace Valley Loop have?

Necklace Valley Loop has 7,128 ft (2,173 m) of elevation gain over 25.2 miles (40.6 km). That averages 283 ft of gain per mile.

How difficult is Necklace Valley Loop?

The difficulty score for Necklace Valley Loop is 14.1 of 100. That is harder than 81.5% of routes at a similar distance. About 46% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.

What is the longest climb on Necklace Valley Loop?

The longest climb on Necklace Valley Loop runs 9.2 miles (14.7 km) and gains 3,400 ft (1,036 m). The steepest climb grade on the route is 46%.