A coalition of environmental groups has persuaded a developer to preserve 90 percent of the largest piece of undeveloped land in Southern California, reports The Los Angeles Times.

The historic Tejon Ranch, 60 miles north of Los Angeles, is eight times the size of San Francisco at 270,000 acres and is prime habitat for the endangered California condor and other species.

The coalition of environmental groups has agreed not to oppose development of the western and southwestern edge of the land.

As part of the agreement, a 12-member Tejon Ranch Conservancy will be established to ensure that the land will be preserved in perpetuity.

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