Slí Arann Mhor

County Donegal, Éire / Ireland

12.2 miles (19.6 km) · 1,543 ft elevation gain · Loop · trail · Route

Slí Arann Mhor is a 12.2-mile loop route in County Donegal, Éire / Ireland, gaining 1,543 feet of elevation. The route follows a up-and-over elevation profile. The terrain breaks into 5 distinct sections including 1 significant climb. The longest climb covers 3.2 miles gaining 771 feet at an average 3.5% grade. Approximately 79% of the route is runnable at a steady effort. The route both opens and finishes with flat terrain.

Route facts

Distance	12.2 mi (19.6 km)
Elevation gain	1,543 ft (470 m)
Average gain	127 ft per mile (24 m per km)
Longest climb	4.2 mi, 629 ft of gain
Steepest climb grade	15.4%
Runnable	79% of the route
Climbs / descents	1 climbs, 1 descents
Profile shape	Up, then down
Difficulty score	6.7 of 100
Surface	trail
Route shape	Loop
Type	Route

Grade breakdown

Grade band	Share of route
Flat	11%
Mild uphill	27%
Moderate uphill	14%
Steep uphill	4%
Mild downhill	29%
Moderate downhill	12%
Steep downhill	4%

Questions about Slí Arann Mhor

How much elevation gain does Slí Arann Mhor have?

Slí Arann Mhor has 1,543 ft (470 m) of elevation gain over 12.2 miles (19.6 km). That averages 127 ft of gain per mile.

How difficult is Slí Arann Mhor?

The difficulty score for Slí Arann Mhor is 6.7 of 100. That is harder than 53.9% of routes at a similar distance. About 79% of the route is runnable at typical trail effort; the rest is steep enough that most runners hike.

What is the longest climb on Slí Arann Mhor?

The longest climb on Slí Arann Mhor runs 4.2 miles (6.8 km) and gains 629 ft (192 m). The steepest climb grade on the route is 15.4%.