Conservationists said the $4.5 million purchase of two private ranches, totaling about 1,000 acres, also will help protect more than 850,000 acres that are attached to the land through grazing permits from the North Rim to the Utah line.
The acquisition connects three national monuments, two national recreation areas and eight wilderness areas, shielding them from further development and restoring overgrazed lands to nurture endangered species in the region.
"That's the beauty of this deal," said Richard Mayol, a spokesman for the Flagstaff-based Grand Canyon Trust, which will manage the land.
Mayol said the purchase was long desired by conservationists but was becoming increasingly crucial as development moved closer from St. George, Utah, and the Arizona Strip, the northernmost part of the state cut off by the Grand Canyon. The trust placed a deposit on the land, giving it until July to officially purchase.
"We felt if didn't move on this now, the land could be subdivided into mini parcels or sold to developers," Mayol said.
The Conservation Fund helped solidify the deal using a grant from Wal-Mart Stores Inc.'s "Acres for America," a program launched Tuesday in partnership with the National Fish and Wildlife Foundation.