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Tronfjell

1,666 m

Norway

Also known as Tron, Tronfjellet

Tron · Tronfjellet

Elevation
1,666 m
Prominence
1,001 m
Difficulty
2/10
Hike
Best Season
Jul–Sep
Routes
1
  • Road closedReported 16 Jul 2026

    Tronfjellveien was open only to Flattron (about 1,300–1,320 m) in summer 2026; the last roughly 2 km and 300+ m of ascent to the summit were closed to traffic because of road damage. Reopening for 2027 not announced; check before relying on the road.

    tynsetingen.no

Routes

1
3D Preview
SACT2HikeNormal route

An easy walk up a broad, treeless mountain with a road and a transmitter on top: from the Tronsvangen summer farms (about 850 m) north-east of Alvdal, a 4.5 km path climbs over open ground past Flattron to the 1,666 m summit. About 820 m of ascent; roughly 6 hours return at a normal pace. Driving to the summit is normally possible on the toll road.

Elevation Profile

7501,0001,2501,5001,7500 km2468FlattronTron
Distance
8.8 km
one way
Ascent
+886 m
start → summit
High Point
1,666 m
Time Up
4h 03m
DIN 33466
Time Down
3h 04m
DIN 33466 · same way back

From Rv 3 at Alvdal, take the road towards Tronsvangen and park at the Tronsvangene car park below the electronic toll barrier, at about 850 m. A 4.5 km path runs from Tronsvangen seter to the summit; the toll road (Tronfjellveien, about 10 km, Norway's second-highest road) also winds up the mountain and some walkers follow it. The whole mountain above the farms is treeless, the ground predictable and fairly level on the Flattron shoulder (about 1,320 m), where there is a parking area, an old emergency hut and a 4 m white granite memorial from 1979. From Flattron the last 2 km and roughly 350 m of ascent lead to the top of Tron (1,666 m), a first-order trig point with a Norkring radio and TV transmitter and an Avinor air-traffic radar. A side trip from the road leads in about an hour to the grave of the Bengali philosopher Sri Ananda Acharya ('Baral') and his horse at about 1,400 m, on two marked paths (red stones or quartz stones). The neighbouring top Tylldalstoppen (1,653 m) is the highest point of Tynset. Descend the same way. Fog, wind and precipitation can arrive quickly; in cloud keep to the path or road. Round trip times: about 6 hours at a normal pace on the path; a fast party walking the road took 4 h 20 min for 18 km.

Start

Tronsvangene780 m

  • Train to Alvdal station on the Rørosbanen; local bus stop 'Tronsvangkrysset' on the valley road, then a few kilometres on foot up to Tronsvangen (stop listed in OSM; timetables not checked)
  • Parking at the trailhead

Stages

DayStagekmm ascentm descentTime
1Tronsvangene → Tron8.888604h 03m

Waypoints

  1. Parking:
    Tronsvangene780 m

    Below the electronic toll barrier of Tronfjellveien

  2. Shoulder:
    Flattron1,304 m

    Parking, old emergency hut and 1979 granite memorial; road closed to cars above here in summer 2026

  3. Summit:
    Tron1,666 m

    Transmitter, radar and summit car park

Key Passages

  • Flattron shoulder
  • Final 2 km from Flattron to the summit

Equipment

0/3 packed
Footwear
Clothing
Navigation

Downloads

Route confidence 70%

Overview

Tron (1,666 m), the broad, isolated landmark above Alvdal in Østerdalen, carries a transmitter and Norway's second-highest road. An easy walk over treeless ground from Tronsvangen, with a view over seven parishes.

Tronfjell (also Tronfjellet or simply Tron) rises north-east of Alvdal village and north-west of Tylldalen in Innlandet, on the boundary between Alvdal and Tynset, though the summit itself lies wholly in Alvdal. With an isolation of about 30 km and a prominence of about 1,000 m it is a landmark for travellers through Østerdalen; the summit view is said to cover seven parishes and more. The name comes from Old Norse þróndr, 'hog'.

A radio and TV transmitter (Norkring) and an Avinor air-traffic radar stand on the summit. They are served by Tronfjellveien, a gravel toll road about 10 km long built in 1959, Norway's second-highest road, which normally lets cars and buses drive to the top in summer. Walkers start lower, at the Tronsvangen summer farms (about 850 m), on a 4.5 km path to the top over open, predictable ground.

The neighbouring top Tylldalstoppen (1,653 m) is the highest point of Tynset municipality. Below the summit, at about 1,400 m, is the grave of the Bengali philosopher Sri Ananda Acharya ('Baral'), who lived at Tronsvangen from 1917 until 1945.

Climbing Notes

A straightforward day for any reasonably fit walker: about 820 m of ascent and roughly 6 hours return on the path from Tronsvangen. The mountain is above the treeline throughout, so bring windproof layers; fog, wind and rain can arrive quickly. In winter Tron is a popular ski-touring summit. Check the road status before relying on driving up: in summer 2026 the road was closed to vehicles above Flattron (1,320 m).

History

NRK decided in 1959 to place a transmitter on the summit; the brothers Ottar and Ingvald Gjermundshaug built the road at their own risk, working around the clock, and finished it on 1 July 1959. The philosopher Sri Ananda Acharya ('Baral') lived at Tronsvangen from 1917 until 1945 and is buried with his white horse Pollkari on a small plateau at about 1,400 m overlooking Savalen. In 1979 Einar Beer raised a 4 m white granite memorial at Flattron, where a peace university had been planned. The road was upgraded and widened in 2018.


Season

Best Jul–Sep
  1. January: Not advisable
  2. February: Possible
  3. March: Good
  4. April: Good
  5. May: Not advisable
  6. June: Good
  7. July: Best (best window)
  8. August: Best (best window)
  9. September: Best (best window)
  10. October: Possible
  11. November: Not advisable
  12. December: Not advisable
Jan
Winter; road closed
Feb
Ski touring
Mar
Ski touring
Apr
Ski touring
May
Snowmelt; road opening depends on conditions
Jun
Road season starts when passable
Jul
Main season
Aug
Main season
Sep
Often clear, settled days
Oct
Early snow possible

Access & Permits

Fees
  • Tronfjellveien toll road: electronic barrier after Tronsvangen, pay by card or via youpark.no within 48 hours (price not confirmed)
Getting There

Alvdal

Røros (RRS); Oslo Gardermoen (OSL)

  • By car: from Alvdal (Rv 3) towards Tronsvangen; Tronsvangene car park at about 850 m below the toll barrier; Tronfjellveien continues about 10 km to the summit (just under 15 km from Huset Aukrust in Alvdal)
  • Train: Alvdal station on the Rørosbanen, then on foot or taxi to Tronsvangen
  • Buses can drive to the summit when the road is fully open

Hazards

  • Weather