Slovenian gravel: Kočevje forests and the roads with no cars

If you want to ride all day on gravel and see more deer than cars, Kočevsko is the place in Slovenia to do it. It is the forested block of country south of Ljubljana that runs down to the Kolpa river on the Croatian border. The regional tourist board puts forest cover at 91 percent of the area, the highest in the country; a quarter of the municipality was a closed military zone from 1949 to 1990; and the forests hold the core of Slovenia's brown bear population. The result is a road network built for timber, not for traffic, and it is very good on a gravel bike.

This is a guide to what that network is, what the rules are for riding it, which routes the board publishes with numbers, and what to do about the bears.

Why the roads are empty

Three things happened to Kočevsko in the twentieth century, and together they explain the riding. The German-speaking Gottschee farmers who had settled the area since the 1330s were moved out during the war: in the winter of 1941–42, according to the LIFE Kočevsko project's history, 11,509 people left 176 villages, and they were not allowed back. Then in 1949 the new state closed off nearly a quarter of the municipality around Kočevska Reka as a restricted zone, with a bunker complex for the national leadership finished in 1958; it was not opened until a law of summer 1991. And through all of it the forest, which had already been the region's economy for centuries, grew back over the abandoned villages.

So the map is full of village names with no village at them, the through roads are few, and what remains is forest road: macadam, built and maintained for logging trucks, with a warning sign at every junction. The Slovenia Forest Service says there are about 12,200 km of forest road in the country, and a great many of them are here.

The rules for riding forest roads

This part matters, because the legal position is clearer than most riders assume. The Forest Service's own page on forest roads sets it out: forest roads are built for forest management, but forest owners and other users may use them at their own risk, and they carry a sign to that effect. Use can be restricted by formal order, for example a closure to all vehicles except forestry traffic, a weight limit, a one-way regime or a temporary ban, and those restrictions are signposted. Off the forest roads, Slovenian forest law confines vehicles to forestry and rescue, and marked trails are the only place a bicycle belongs.

For a gravel rider the practical translation is:

• The signed forest roads are open to you, at your own risk, unless a sign at the entrance says otherwise. Logging traffic has priority in fact if not in law; a loaded timber lorry cannot stop on gravel.
• Read the signs at the barriers. A closed barrier with a forestry notice means felling in progress. Do not go round it.
• Stay off the unmarked tracks into the reserves. The primeval forest reserves, including Krokar, are closed to entry entirely; you look at them from the marked trail, and the tourist board is explicit that this is the point.

If you are planning a route in a mapping tool, the difference between a forest road and a skid trail is not always visible on the map, and our guide to reading surfaces in a planner covers how to tell them apart before you commit a day to a line that ends in a log pile.

The routes with numbers

The Kočevsko tourist board publishes its routes with length and climbing, which is rarer in Slovenia than it should be. The ones that matter on a gravel bike:

Kolpa–Rog is the one to build a trip around. It starts at the MTB trail centre on the edge of Kočevje, drops south through Črni potok to the Kolpa, which is the border, follows the river through Dol and Predgrad, then climbs back north through the empty villages into the Rog forest and past the Rajhenavski Rog reserve, where the tourist board says fir and beech stand up to 500 years old and 50 m tall. Ninety kilometres of that with 1,700 m of climbing on gravel is a full day for a fit rider; carry everything, because there is nowhere to buy anything between the river and the town. Our packing guide for a 100 km day is written for tarmac; add a second tube and more food.

The board also sells a three-day guided version, 99 km in stages of 27, 35 and 37 km with overnights in Kočevska Reka and on the Kolpa, from April to November. Its stage lengths are a useful hint at how much slower the gravel is than the distances suggest.

Krokar and the reserves

The reason to make the detour to Borovec, above the Kolpa, is Krokar: over 75 hectares of primeval beech forest that has never been cut, on the UNESCO World Heritage list as part of the ancient beech forests of Europe. You cannot go in. The Borovec nature trail, 7.1 km with 330 m of climbing on foot, runs along its edge with viewpoints over the reserve and the Kolpa valley, and that is the only way to see it. Rajhenavski Rog, 51 hectares in the middle of the Rog forest, is the other reserve the Kolpa–Rog route passes, and the same rule applies. The board lists 218 hectares of virgin forest in the region in total.

Bears, honestly

The Slovenian government's large-carnivore page puts the brown bear population at 700–900 animals across just under half the country, and these forests are the part of it most associated with them. The tourist board's cycling page says encounters are rare and gives the standard advice: stay calm, back away slowly, do not run. The government adds the two situations that go wrong, a bear with cubs and a bear that is surprised, and a dog off the lead.

What that means on a gravel bike, in our experience: make noise on blind forest-road bends, especially in the early morning and at dusk when the roads are quietest and the animals are moving; do not ride the forest at night; and do not stop to eat where there are bins. We have not heard of a cyclist being hurt by a bear in Slovenia. We have heard of plenty of riders seeing one, and that is a reason to come, not to stay away.

What the weather does

ARSO's station at Kočevje, at 467 m in the basin, gives the region's climate, and it is a cold, wet one for its altitude.

The forest roads are at their best from May to October. Gravel drains better than you would expect after rain, but the shaded roads in Rog keep snow and ice into April, and the autumn is wet. July and August are warm rather than hot under the trees, which is one of the region's quiet advantages over the Karst.

Planning it

Base in Kočevje: it has the trail centre, the shops and the start of every route. Ride the Lower Kolpa loop first to calibrate how fast the gravel is, then Kolpa–Rog. Build routes on the signed forest roads rather than on whatever a mapping tool suggests, because the tool cannot see the barriers; our route-planning guide for unsurfaced days covers the method. Moveee's route builder shows the climbing on a line before you ride it, and a route saved there can be ridden indoors in Moveee Indoor in the months when Rog is under snow. For the rest of the country, tarmac included, start with our overview of cycling in Slovenia.