Two people standing in a look-out tower watching the lake view beyond.

Wooden stairs built on the face of a steep hill.

Two people at the top of the Oravivuori Triangluation tower. Photographed from below so the whole tower is in view.

Two people examining the Oravivuori nature tail information board

Oravivuori Nature Trail and Triangulation Tower

Vanhanpääntie, Korpilahti

Jyväskylä

https://www.jyvaskyla.fi/liikunta

The Oravivuori trail leads to the top of Oravivuori hill in Korpilahti’s Puolakka, where one of the survey points of the famous Struve Geodetic Arc, part of the UNESCO World Heritage List, is located.

Description

At the top of Oravivuori, there is a sturdy triangulation tower that highlights the significance of Oravivuori, also known as the Puolakka measurement station, for the mapping of Finland. The trail to the top of Oravivuori is about one kilometer long and ascends a sometimes steep and rocky slope. From the triangulation tower, there are stunning views of Lake Päijänne.

ARRIVAL AND PARKING
The starting and parking area for the nature trail is located along Vanhanpääntie, at the address Vanhanpääntie 51. Parking space is limited. The site is not accessible by public transportation, only by private car or taxi. The nearest bus stop is along Highway 9 (E63), about 8.5 km from the start of the trail.

WINTER MAINTENANCE
The trail is not maintained during the winter, so caution and appropriate equipment for the conditions are recommended during the winter season.

You can also explore the site virtually via browser or mobile app: https://struve.humak.fi/koe-struve-experience/