Collard Hill, in pursuit of the Large Blue

Walking trail

In 2002 Collard Hill was opened by the National Trust on behalf of the Large Blue Partnership as a great place for the public to come and see this rare and fascinating butterfly.

Soak up wonderful views towards Glastonbury Tor

Having disappeared from the UK in the late 1970s, the Large Blue is flourishing here and even at busy weekends, you’ll find plenty of quiet spots in which you can get a good glimpse of them.


Map route for Collard Hill, in pursuit of the Large Blue walk


National Trust car park, grid ref: ST488340


From the car park near the youth hostel, head east towards the crossroads.

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Large Blue butterfly


Follow the path through woodland glades and out into rough grassland. Look out here for marbled white and ringlet butterflies, plus several types of orchid.


Cross over a (blind) summit crossroads with great care. Go to the opposite, south-east sector of the crossroads, heading towards the Scots pine trees, and a National Trust stile and interpretation board.


Head right, towards and through the scattered pine trees. The blue-topped post route guides you through some key large blue areas, but feel free to explore.

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Start climbing the lower slopes of Collard Hill then continue walking straight ahead, traversing halfway up the hillside. Large blues fly all along here. They tend to use the lower slopes in windy weather, but never fly north of the new fence that runs along the crest of the slope. In the distance is Butleigh Monument on Windmill Hill.

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Brown Argus butterflies in the wood


A favoured area for the large blue is the East Bank, a grassy open area east of the track that runs diagonally down the slope. Explore and leave via a path cutting through the scrub at the bottom of the slope.

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Exotic looking bee orchids mimic other insects to help with pollination


Turn right and follow the bottom of the slope back to point five and return to the start of the walk.


National Trust car park, grid ref: ST488340

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Collard Hill, in pursuit of the Large Blue


Steep to moderate grassy and chalky slopes, which are hard and bumpy when dry, and slippery when wet. Cross the busy B3151 crossroads with particular care.

Collard Hill, in pursuit of the Large Blue

Contact us

Collard Hill, in pursuit of the Large Blue

How to get here

near Street, Somerset
By road

1 mile (1.6km) south of Street and to the east of the B3151.

By bus

Bus 377 from Yeovil and Street to Collard Hill (alight Marshalls Elm crossroads).

Collard Hill, in pursuit of the Large Blue

Facilities and access

  • For refreshments, try the many cafés and pubs in the town of Glastonbury
  • Information points at Glastonbury Tor, Burrow Mump and Collard Hill