Rangers and volunteers have spent several weeks repairing eroded sections of the ancient Roman Road above Burtersett in Wensleydale, with financial support coming from two recreational motoring groups.
Surfacing and drainage works took place near Four Lanes End on what is locally known as the Cam High Road.
The team then went over Wether fell into Raydaleside to carry out repairs on Busk Lane, working from the junction with the Stake Road back to Carpley Green Farm.
A total of 700 tonnes of limestone aggregate was laid and rolled at the two sites. Culverts and drainage ditches were also cleared of vegetation as part of the works.
The North Yorkshire group of the Green Lane Association (Glass) and the North Yorkshire and Teesside group of the Trail Riders Fellowship (TRF) each donated £2,500 towards the works.
Last year, the groups donated a similar amount of money.
The Cam High Road and Busk Lane are green lanes designated as Byways Open to All Traffic, meaning that they can be used by walkers, cyclists, horse riders and motorised vehicles.
Matt Neale, area manager north, said: “This was essential routine maintenance which all too often can get overlooked.
“I would like the thank GLASS and the North Yorkshire and Teeside group of the TRF for their support.
“Both organisations have recognised that their recreational use of the national park has an environmental impact, and they continue to step up to the mark to help us maintain the byways.
“Thank you to Leo Crone of the TRF who invited me to talk to the group about green lanes and some of the issues, and presented a cheque.”