Suie Hunting Lodge
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Crianlarich and Tyndrum
An Caisteal
A Munro of 996 metres, number 146 of the 282.
The hill
An Caisteal stands above Glen Falloch near Crianlarich, in the Loch Lomond and The Trossachs National Park.
Beinn a' Chroin, the next Munro along the ridge, is only about a kilometre away to the south-east, and Beinn Chabhair and Cruach Ardrain are not far off either.
The park authority pairs the two hills and praises the ridge between them for its views on every side. Below, the old Caledonian pines of Glen Falloch stand out on the broken ground of the glen, a landmark the authority picks out by name.
On the far side, at the Balquhidder end, Inverlochlarig Farm counts An Caisteal among the seven Munros that surround it.
- The start
- The A82 in Glen Falloch, 1.5 miles before Crianlarich on the road from Glasgow.
- How hard
- The park authority calls An Caisteal and Beinn a' Chroin together a more challenging walk, for confident hillwalkers who can read a map.
- The ground
- Deer management and farming may be going on, and the park authority asks walkers to keep that in mind.
- Under snow
- No avalanche forecast covers this hill, but that does not mean there is no risk under snow. The avalanche service's forecasts begin on 17 December 2026.
- Summit
- Grid reference NN 378 193
- Parking
- The park authority points to the roadside and a layby by the River Falloch.
- Bus and train
- Crianlarich has a station and Citylink coaches from Glasgow. From the village, the park authority's directions are a walk of about 1.5 miles along the A82 towards Loch Lomond to the layby.
- Toilets and food
- Crianlarich has public toilets and places to eat.
On the hill today
1° to 4°Rain on the summit, 996 m. Feels like −3° in the wind.
West wind to 11 mph, gusting 23
Rain, about 3 mm
Light from 7.51am to 6.16pm, ten hours
Sat 17Mostly clear−3° to 4° on top · 5 mph, gusts 14
Sun 18Clear−4° to 3° on top · 8 mph, gusts 17
Mon 19Drizzle−5° to 5° on top · 8 mph, gusts 18
A weather model's forecast for the height of the summit, not a report from the hill. Read the mountain forecast the evening before: West Highlands forecast, Southeastern Highlands forecast, An Caisteal, Stirling, Southwest Highlands mountain forecast.
October2026
MTWTFSS
Going another day?
Choose the day you mean to climb.Near or far: the light you will have, and what the summit is likely to be doing.
Photographs by DL, Patryk Zieliński and Thomas Connelly (TC), via Google
A more challenging walk for confident hillwalkers with map reading skills.The Loch Lomond and The Trossachs National Park Authority, of An Caisteal and Beinn a' Chroin together
Before you go
Carry
- A paper map and a compass, and the skill to use them
- Waterproofs, warm layers, hat and gloves
- Food and drink
- A head torch, a whistle and a first aid kit
- A survival bag
- Boots with a good grip
Under snow and ice this is a different day, with short light and the risk of avalanche. It needs an ice axe, crampons, winter boots and the skill to use them.
If something goes wrong
- Dial 999, ask for the police, then mountain rescue
- Give a six-figure grid reference: the summit is NN 378 193
- Say how many are hurt, how many are with you, and your number
- Register to text 999 before the day: text the word register to 999
The summit is optional. Turning back is the right decision whenever the cloud, the wind or the light say so.
How to call for help in the hills · Safety and skills for the hills · ThinkWINTER
From our readers
Nobody has written from An Caisteal yet. If you were up, yours would be the first.
Tell the next person
Were you up? Three words is enough.A free account, a word for the weather and a line if you like.
Read more elsewhere
For the route itself, take the map and read these.
- An Caisteal and Beinn a' Chroin on WalkhighlandsA route description with a map, where the park authority sends walkers for the trail up both Munroswalkhighlands.co.ukThe route↗
- The park authority's page for An Caisteal and Beinn a' ChroinThe park authority on the two hills: how hard they are, the ridge, and how to reach the start from Crianlarichlochlomond-trossachs.orgThe park↗
- Crianlarich station, by ScotRailCrianlarich station: trains, and what is at the stationscotrail.co.ukThe station↗
- Deer stalking, by Mountaineering ScotlandWhen stalking happens and how to plan round itmountaineering.scotStalking↗
- West Highlands forecastThe Mountain Weather Information Service's forecast for three days ahead, written by forecasters. Two of its areas meet near this hill, so read this one and the nextmwis.org.ukMountain weather↗
- Southeastern Highlands forecastThe neighbouring area's forecast, reaching west to the Callander areamwis.org.ukMountain weather↗
- An Caisteal, StirlingThe Met Office's forecast for the summit itself: a computer model for one point, not a report from the hillweather.metoffice.gov.ukSummit forecast↗
- Southwest Highlands mountain forecastThe Met Office's mountain forecast for the area, the one its summit page links toweather.metoffice.gov.ukMountain weather↗
Next along: Beinn a' Chroin, Beinn Chabhair, Cruach Ardrain, Beinn Tulaichean. Checked on 10 October 2026. The facts on this page are the Loch Lomond and The Trossachs National Park Authority's and Forestry and Land Scotland's; the forecasts are the Mountain Weather Information Service's and the Met Office's. Height and position from The Database of British and Irish Hills, v18.3, adapted, CC BY 4.0. This page is not a route description and does not replace a map.