John Davis (Photo from his blog)
The work of restoring connections between habitats is being undertaken by a coalition of highly respected conservation organizations, under the auspices of the Wildlands Network and including, in our own Arizona, the Sky Island Alliance and Grand Canyon Wildlands Council. Partners in Mexico include the Northern Jaguar Project, Naturalia, and Cuenca los Ojos (known to birders as the legendary Cajón Bonito).
I urge you to check out the TrekWest website, and to follow the excitement of the journey through John's blog of the epic trip. A film by Ed George is documenting and celebrating the journey, and will one day be launched for all to see.
Grand Canyon Wildland Council is also featuring TrekWest and other conservation news in their blog.
The vision of connecting wildways through North America (and elsewhere, like Australia) is perhaps the most exciting conservation initiative to emerge in recent decades.