38 km · about 45 minutes
From Bergamo you leave towards Villa d'Almè and take the SS470 of the Brembana valley. After Sedrina and Zogno, at Ambria you leave the valley floor and turn right onto the SP27 of Val Serina, which climbs in hairpins to Serina; from Serina you continue via Valpiana and the Col d'Anì and reach Oltre il Colle. For Zambla Bassa, Zambla Alta and the Colle di Zambla you carry on past the main village; for Zorzone you leave the provincial road at the Piazzale degli Alpini.
It is the shortest way and the one the village regards as its main access: from Bergamo station to piazza Tiraboschi it is about 38 kilometres, to Zambla Alta about 42, to Zorzone about 43. The Pro Loco gives 43 kilometres from the A4 exit at Bergamo, which is south of the city centre. From Ambria the climb to the main village measures about 17 kilometres, to the Colle di Zambla about 23. The SP27 crosses steep slopes and is sometimes closed by landslides: the latest closure, between Rosolo and Serina, lasted from 28 August to 1 October 2026, with traffic and buses diverted via Costa Serina and Cornalba; the road reopened after the Province's safety works.
Verified on 1 October 2026
50 km · about 1 hour
From Bergamo you drive up the Seriana valley along the SS671 to Ponte Nossa, where you take the SP46 of Val del Riso. The road climbs the mining valley through Gorno and Oneta and reaches the Colle di Zambla at 1,264 metres; from there you descend to Zambla Alta and Zambla Bassa and continue to Oltre il Colle.
Longer than Val Serina, but it is the natural road for those arriving from Albino, Clusone and the upper Seriana valley, and the alternative to keep in mind when the SP27 is closed. The Colle di Zambla is the only pass between the Brembana and Seriana valleys crossed by a road for vehicles. From Ponte Nossa (450 m) to the pass Wikipedia counts 14.1 kilometres of continuous climbing in hairpins, with a maximum gradient of 10%; from Clusone to the main village it is about 27 kilometres.
Verified on 1 October 2026
88 km · about 1 hour 30 minutes
A4 Milan–Venice motorway to Bergamo, then the ring road and the SS470 of the Brembana valley towards Villa d'Almè and Zogno. At Ambria you take the SP27 of Val Serina for Serina and Oltre il Colle.
The calculation starts from the centre of Milan. The last part is all mountain road: the roughly 38 kilometres between Bergamo and Oltre il Colle weigh almost as much as the 50 kilometres of motorway before them, and with traffic leaving Milan or in the valley the times grow.
Verified on 1 October 2026
91 km · about 1 hour 20 minutes
A4 motorway towards Milan to Bergamo, then the SS470 of the Brembana valley and the SP27 of Val Serina. Alternatively you can drive up the Seriana valley to Ponte Nossa and climb the SP46 of Val del Riso to the Colle di Zambla.
The two variants are equivalent in distance: the one via the Seriana valley and the Colle di Zambla measures about 96 kilometres, a little over an hour and a half, and suits those arriving from Lovere and Lake Iseo.
Verified on 1 October 2026
59 km · about 1 hour 15 minutes
From Lecco you follow the SS342 Briantea towards Cisano Bergamasco and Villa d'Almè, where you take the SS470 of the Brembana valley. At Ambria you climb the SP27 of Val Serina for Serina and Oltre il Colle.
The route avoids the city of Bergamo. There are no motorway stretches: it is about 60 kilometres almost entirely on state and provincial roads, with the last half hour of hairpins.
Verified on 1 October 2026
The main village, Zambla Bassa, Zambla Alta and the Colle di Zambla lie in a row along the SP27: from piazza Tiraboschi it is about 3.8 kilometres to the church of Zambla Bassa, 4.6 to Zambla Alta and 5.6 to the pass. Zorzone is on a municipal road, via Capriana, which starts at the Piazzale degli Alpini: about 4.8 kilometres. From Zambla Alta a municipal road climbs for about four kilometres to Plassa and continues to the car park of the old lifts at Alpe Arera, at around 1,600 metres. For the trails CAI Bergamo indicates the car parks of the Colle di Zambla (Alben, Grem), Plassa (Capanna 2000) and Zorzone (Menna, Val Vedra, Val Parina); in the main village the largest car park is above via Roma, near the Piazzale degli Alpini, where you also find the only petrol station in the upper Val Serina.
In winter you need winter tyres or chains: the ordinance of the Province of Bergamo requires them from 15 November to 15 April on all provincial roads, including the SP27 and the SP46, and with snow or ice on the road chains must be fitted if you do not have winter tyres; the obligation also applies outside that period when it snows. In winter the municipal road from Plassa to Alpe Arera is also closed, and those going up to Capanna 2000 set off on foot from Plassa; via Capriana to Zorzone is a narrow, winding municipal road.
Verified on 1 October 2026