BAR HARBOR — Resource Acadia will offer a daylong seminar titled “Rockefeller’s Roads Revisited” from 9:30 a.m. to 3:30 p.m. Saturday, June 11. The seminar will focus on the history and unique construction of Acadia National Park’s carriage roads, as well as the rehabilitation project that will continue this summer. The discussion and slides will be followed by a field trip to investigate carriage road features and work sites.

The speakers will be Jim Vekasi, civil engineer and chief of maintenance at Acadia, who is overseeing the carriage road rehabilitation work, and Linda Gregory, Acadia’s staff botanist, who is working to revegetate the construction areas with native plant varieties. The field trip will include a presentation of stone-cutting techniques and a short carriage ride while the guest speakers point out the features of the roads and the rehabilitation work completed thus far.

The public is invited. For more information call 288-3893.