The Allegheny Land Trust has added an 11.3-acre parcel to the Grandview Scenic Byways Park.

The park is being linked by private and public parcels encircling Mount Washington and Duquesne Heights. It was created in 2005.

The new parcel overlooks the West End. It is damaged woods common to the area, with tires and construction debris, said Roy Kraynyk, executive director of the trust. A trail through it has been damaged by all-terrain vehicles, he said. It will be repaired as a hiking trail.

The property cost $200,000, Mr. Kraynyk said Friday. "If it were on the front side, it would have been developed," he said.

The trust will give the land to the city but will hold a conservation easement and retain development and timber rights.

He said Trumbull Corp. had expressed an interest in using the land to dump fill from its West End Circle project.

The trust has conserved 1,400 acres since 1993, but this is the first on Mount Washington. Mr. Kraynyk said the trust is interested in two or three other parcels to contribute to the park.

"Land acquisition that conserves passive open space is really progressive thinking on the part of our community, funders, the city and Allegheny Land Trust," said Lynne Squilla, a board member of the Mount Washington Community Development Corp.

The corporation employs a park resource manager to work with geologists, surveyors, landscapers, state agencies, the city and conservation groups.

"The whole effort behind [this] is exactly the kind of grass-roots, public and private funding collaboration we love to see in this city," said Councilman Dan Deasy, whose legislation created the park to be an "emerald link" around the mount.

An extensive plan includes an encircling trail system and replacement of invasive vegetation with native trees and shrubbery, some of which has been done.

The trust will assess the land "to find out if there is anything toxic or dangerous," said Mr. Kraynyk. Sixty percent of the land his agency conserves is biologically diverse land, he said, and little has required remediation.

"This one has a nice little view of the West End Valley," he said. "It's a classic Pittsburgh view of little houses perched on the hillside."