Indeed, development encroached on many of those pastoral neighborhoods, and the Olmsteds' idea faded from memory.

Suburban development has encroached on hunting areas, he said, while computers, video games and organized team sports now provide other forms of recreation for young people.

Further development is steadily, if not heavily, encroaching past the mountains into the outlying desert areas.

If anything, fears of additional traffic and declining property values are even stronger as developments of various kinds encroach on their community.

Much of the region is quite rugged, and little urban development has encroached upon it.

"What I've observed is that as the developments have encroached into migrant areas, we are seeing more tension and more incidents."

As urban developments encroach on wilderness areas, the land becomes more prone to natural disasters.

In the south, development is also encroaching on the city's other major reservoir, La Concepcion.

But over the years residential development has encroached upon the life of solitude and contemplation, the sisters say.

Today new homes and developments from nearby urban areas are encroaching on the canyons.