Destroying the Joshua trees in order to save them
The soil here is tawny, pale with a reddish cast, alluvium washed down out of the Black and Date Creek mountain ranges, and the Grayback and Weaver mountains behind them. Wind and flash flood have rendered the rock, pulverized it. Soft lava and old sandstone mix with flecks of harder, brighter granite.
A Harris’ hawk perches atop a saguaro, regards the landscape blankly.
The broad plain slopes southwest, toward Bullard Wash about four miles away. The soil is mainly bare, easily washed away, and so the plain is striped with broad washes that storms have carved into the earth. They run into Bullard Wash as well. The sediment they carry will eventually reach the Colorado, 60 miles away as the Raven flies. It may take a thousand years to get there, or ten thousand, but it will get there.
There are plenty of lists of natural wonders available to tourists in Arizona. You’ll find some of the world’s most dramatic scenery detailed on those lists: canyons a mile deep, clustered column cacti and elephant trees, landscapes awash in improbable palettes, towers and pinnacles of Permian red rocks. This little plain between the Black Mountains and Bullard Wash rarely makes those lists. When it does, the mention is limited to the strip of pavement ten miles east: the Joshua Forest Parkway between Wickenburg and Burro Creek. The highway is noteworthy: it runs through a pretty stand of the trees. Most people passing through admire the trees through a layer of safety glass. A few hardy souls get out and picnic at a sun-drenched highway rest stop.
Far fewer souls venture out here along dusty Alamo Road, far enough from the pavement that even the noise from the 18-wheelers’ clattering jake brakes does not reach them. Those that do come here, excepting a few local ranchers, are generally heading for a reservoir park 25 miles west — and it’s much easier to get to that park from the west, where a paved road goes all the way to the shore. Still, a lake-bound traveler will speed past the head-high creosote here a couple times a day on a weekend.
Aside from those few, this plain is devoid of human visitors. But the lack of tourist traffic here doesn’t make the landscape any less important, any less significant. To realize this place’s significance you must have a bit more familiarity with deserts than is typical. If you know a bit about desert plants and where they tend to grow, this place quickly reveals itself as utterly unique. There is no other place like this in the whole world.
This is the one place in the world where Joshua trees and saguaros grow side by side.
That may not seem particularly significant. Put it this way: The Joshua tree is the emblematic tree of the Mojave Desert, and the saguaro cactus represents the Sonoran Desert in much the same way, yet here they grow intermingled. Joshua tree habitat in the Mojave tends to be higher, colder and drier than that saguaros enjoy in the Sonoran. This plain is unequivocally in the Sonoran Desert: aside from the Joshua trees, the vegetation here is Sonoran desert vegetation. Ocotillos spread their spiny fingers skyward with crimson blossoms at their tips. Soaptree, Yucca elata — a cousin of the Joshua tree — bears fat panicles of creamy flowers.
Joshua trees do range out of the Mojave a bit. I’ve seen them growing at the crest of the Sierra Nevada, and in a little swale where the Tehachapis meet the Coast Ranges. I’ve seen them growing out of the red rock of the Colorado Plateau. But those places have been within sight of the Mojave. Here, the trees seem incongruous, out of place.
That’s a bit of Modern-Day chauvinism, of course. Joshua trees grew in what is now the Sonoran Desert as recently as 12,000 years ago. It’s likely the species originated somewhere in northern Mexico and migrated northward as the southwestern deserts grew more arid. It may be that Joshua trees were growing here before any of the Sonoran Desert plants that now accompany them.
Or these trees could be descendants of a population from the north and west that migrated back in this direction over time. Either way, this population of Joshua trees is at about the southernmost edge of its species current range. There are some trees in Joshua Tree National Park, a hundred-fifty miles west, that grow a bit farther south — a handful of miles or so. Those trees are protected, at least in a legal sense — though air pollution, wildfire and climate change threaten their existence.
The Joshua tree forest above Bullard Wash ought to be protected. In a sane world, this spot would be a noted preserve: the “Joshua Trees And Saguaros National Park,” perhaps, visited by desert rats and landscape photographers and tourists making the circuit of Arizona’s natural wonders.
Instead, the Obama administration is considering the possibility of paving the whole place.
This week, twenty-four tracts of land in five western states were designated Solar Energy Study Areas by the Interior Department. Said Interior Secretary Ken Salazar:
“President Obama’s comprehensive energy strategy calls for rapid development of renewable energy, especially on America’s public lands. This environmentally sensitive plan will identify appropriate Interior-managed lands that have excellent solar energy potential and limited conflicts with wildlife, other natural resources or land users. The two dozen areas we are evaluating could generate nearly 100,000 megawatts of solar electricity. With coordinated environmental studies, good land-use planning and zoning and priority processing, we can accelerate responsible solar energy production that will help build a clean energy economy for the 21st century.” [emphasis added.]
This plain between Alamo Road and Bullard Wash — the red-hatched area in the map below — is one of the 24 tracts.
Climate-change-propelled extinction of Joshua trees has been much in the news these last few months. Temperatures are rising, droughts lengthening, and the climatologists talking in terms of 500-year records, 1000-year records. It may well be that no Joshua trees exist in their namesake National Park in a couple decades, that none exist in the wild in a century. Sober-sided ecologists and land managers are beginning to talk seriously about “assisted migration,” or planting and tending wild gardens of Joshua trees farther north, at higher altitudes, where the species might survive.
The Joshua tree forest above Bullard Wash has thrived for some centuries in hotter conditions than most of their kin could well tolerate. In a sane world, plant breeders and arboriculturists would be combing the tract taking seed samples, capturing and studying the yucca moths without which the Joshua trees cannot reproduce, to see whether both species might prove integral to the long-term viability of Joshua tree forests as a whole.
Instead, the Obama administration wants to bulldoze the place, run construction equipment and pipelines and transmission lines through its margins, blade and scrape and poison the ground so that nothing can grow there, and pave it with mirrors. This, they say, is a small part of a climate change mitigation strategy that’s necessary if we are to survive into the 22nd century.
The argument trotted out by the engineers, the anthropocentric so-called “environmentalists,” the terraformers, the advocates of Big Desert Solar is that the desert will be lost anyway if they do not carry out their plans. This is an argument with deep historical roots, perfected in its current form by General William Westmoreland as he spoke of villages in Vietnam.
But one cannot save what one does not understand, and the Interior Department clearly, in it official capacity, fails to understand the plain above Bullard Wash. They say:
Sensitive lands, wilderness and other high-conservation-value lands as well as lands with conflicting uses were excluded [from consideration as SESAs].
The only place in the world where Joshua trees and saguaros grow together, and Interior declares it not a “high-value conservation land.” They fail to understand its value, or they understand its value and lie about it. It doesn’t really matter which, though I suppose if it is merely the former they might be amenable to persuasion via the usual commenting process.
It is not the Joshua trees, of course, to which the terraformers refer when they talk about “us” surviving into the 22nd century. It isn’t even people they’re talking about, really, but a particular subset of people: people unwilling to spend more than 79 cents on a light bulb, unwilling to do without private cars, unwilling to push for the radical changes we desperately need. Human history is a fast car speeding toward a washed-out bridge, and the “people” the terraformers would protect are the ones with their foot on the gas.
If I am given the choice between a world without such people and a world without Joshua trees, I could make the decision without the slightest hesitation.
I suspect that choice will not be exactly necessary, but I am mightily tired of that feeling I got so often during the last decade, the knowledge that faced with a wide range of options, the Executive Branch was certain to pick absolutely the worst option, and then implement it badly. I had hoped for a time this year that those days were over. These days I fear they have just begun.
[More photos of the area here.]





