DOT cut trees along Route 3 in 2005 not knowing where the highway right-of-way ended and the park began.

"It's marked now," Sengenberger said.

The Green Book includes specifics for Adirondack-highway design, guide-rail materials, signage, invasive-species protocol and scenic byways.

New in the third edition are the elimination of rustic brown guide rails; plans to use native species for roadside planting; new plans for habitat connectivity and wildlife protections; and new guidance on Forest Preserve issues, including cutting.

Environmental groups declared allegiance to the new plan, and Brian Houseal, executive director of the Adirondack Council, credited the three state agencies for pulling together the technical people to make the Green Book work.

But he cautioned policy makers to keep an eye on the changing climate and to "think about migratory corridors as we build new transportation structures."

David Gibson, executive director of the Association for the Protection of the Adirondacks, said Ed Franz, the DOT's specific engineer for the Adirondacks, deserves credit for accomplishing the tough job of coordinating the state agencies.

"But the most important people here are not us," Gibson said, "they are the people out there -- the visitors and the residents of the park."

After signing the cooperative agreement, Glynn went on to make celebratory remarks in Tupper Lake on completion of Route 30 improvements.

DOT relocated utility lines and reconstructed nearly 3 miles of scenic roadway near Big Tupper Lake.

R. Carey Babyak, Region 7 coordinator for DOT based in Watertown, said the second phase of road construction for Tupper Lake is still in design phase.

DOT is currently reviewing options to straighten or otherwise smooth the flow of traffic through the Village of Tupper Lake.

"Continuation of the project is currently in design. Residents have asked us to take a look at Lake Street instead of Main Street," he said. "The people of Tupper have been very good at letting us know their opinions."

Phase 2 of DOT work in Tupper Lake has no specific timeline yet, Babyak said.

"We are still working on issues relative to cost and design."