Saturday, June 20, 2020

Big Bend National Park

I spent eight nights at Big Bend National Park in February 2009. I sent out an email report at the time and this post is based largely on that. I have subsequently returned to Big Bend twice, in 2018 and 2019, and have included a few pictures, though no text, from those visits.



2/08/09
Big Bend National Park is located in the southwest corner of Texas along 118 miles of the border with Mexico, delineated the entire length by the Rio Grande. At 800,000 acres it is one of the country’s larger national parks – the eighth largest not counting the behemoths of Alaska. Beyond the river corridor the land is comprised almost entirely of Chihuahuan desert, punctuated by countless rugged hills, buttes, mesas, and small mountains, all fostering austere desert ecosystems.



The centerpiece of the park, though, is the Chisos Mountain Range, twenty miles of jagged peaks eroded from volcanic eruptions 40-60 million year ago. The Chisos are a sky island, rising high enough above the desert to generate its own ecosystem: an 800-acre temperate forest of oak, juniper, and the rare and beautiful Texas madrona. At the highest elevations some Ponderosa pine and Douglas fir hang on, relics from the last ice age. Desert plants including cactus are encroaching, an unlikely balance hinging on the direction of future climate developments.



The Chisos Basin campground sits at 5,400 feet, almost entirely encircled by a cluster of the highest and most rugged of the peaks. Casa Grande (7325’) is the basin’s visual centerpiece; Emory Peak (7,825’) the tallest; Vernon Bailey Peak, just 6670’, but seemingly as wide as it is tall, its entire above-basin bulk fully exposed. The basin is in a transition zone of high grassland and brush, allowing open views to these imposing masses. It is one swell place to watch the setting sun set fire to the rock.



Casa Grande



Vernon Bailey Peak


The Chisos are popular year round but are particularly valuable in the hotter months when daytime temperatures remain 10-20 degrees cooler in the mountains than on the desert floor. I worried a bit about what this differential would mean for winter lows but oddly the Chiso Basin was warmer at night than the campground along the Rio Grande at 1800 feet. This seems to result from a combination of the bare Chisos rock absorbing and maintaining the daytime sun, and the effect of cooler air sinking into the lower river valley. On the other hand the rising morning sun got stuck behind Casa Grande and didn't hit the campground until after 9:30 AM.



A network of trails makes for good mountain hiking. Some three dozen backcountry sites are heavily utilized. I day hiked to Emory Peak, at 7,832' the tallest peak in the park and the eighth tallest in Texas. It’s 10.5 miles round trip through both forest and exposed mountainside, culminating in a 25-foot rock scramble, challenging for non-climbers, especially on the way back down. The ranger station records dozens of cougar sightings a year in the Chisos, but none by me thank you. Black bears have also recently reintroduced themselves from Mexico, after being driven out fifty years earlier. Big cliffs, broad views over the desert; it was really nice to be back in the mountains.





Javalinas

A pack of javalinas was browsing the campground when I arrived. I had seen them once on a nature show and had been amazed to learn such an animal roamed wild in these United States. Yet here they were in my campground in broad daylight, casually browsing the flora. Javalinas are famously “not pigs”, something their human spokespersons must continually emphasize because they sure do look like pigs. They are, in fact, collared peccaries, genetically distinct from pigs for millions of years. They are wild animals in the Southwest, somewhat on the order of deer in that they roam around browsing. They are primarily vegetarian and love prickly pear cactus, spines and all, though they’ll also scoff up a bird’s egg or two should they come upon them. 

Javalina
Javalina
  

They weigh 40-60 pounds and travel in herds of 10-20, which is a lot of collared peccarie (think pig) to be running around a campground, particularly since they have no deer etiquette. They don’t spook easy and in fact seem rather surly. They have poor vision (but a great sense of smell) and rather than move away from you they will come closer just to get a better look. They have very sharp teeth and hooves and if you leave the family dog tied up at the campsite and things go the wrong way they might give it a good and even fatal thrashing. In their minds, it’s self-defense.



Right off the campground host gave me a tip. If you want them to move just throw a handful of pebbles a few feet behind them. They’ll scamper. Don’t hit them, because then they’ll stay put. I tried this and it worked perfectly.



People complain about their smell but I didn’t find them that bad. They’re a bit gamey, but not foul. Of course I couldn't always claim the high ground on that issue myself. But lying in my tent one night at nearby Fort Davis State Park as a dozen or so came migrating through my site, milling about making weird porcine snorts, them being near sighted and ornery and all, that was a bit disconcerting



The truth is javalinas jostled let’s say my commitment to the Endangered Species Act. This is odd because they aren’t threatened much less endangered. They just make me wonder why they aren’t - they seem too preposterous to be running around freely like this. In fact the Big Bend javalina were being hunted toward extinction before the establishment of the national park in 1944. Since then it has been protected like any other species and is “now recognized to be an integral part of the Chihuahuan desert ecosystem, an animal worthy of study.”



But what I wonder is this: this is cougar country. Cougar prey on javalina, which seem to lack the speed and agility of deer. I don’t understand why a cougar wouldn’t just stalk a band of javalina and just take one every time it got hungry until there were no more javalina and it had to go back to chasing deer. Maybe they don’t taste so hot? There must be a reason, otherwise they’d be endangered and I’d have to pull up my socks and support the porkers.



The Rio Grande

The defining characteristic of Big Bend National Park is of course the Rio Grande. Most of the 187 miles of riverfront can be accessed only on very rough jeep roads or by boat on the river itself. For the rest of us two paved roads lead to dramatic canyons the Rio Grande has cut through enormous cliffs along the border. The canyons are at opposite ends of the park: Santa Elena on the west where the river runs into the park, Bocquillas Canyon on the east, where it leaves.



The desert drive to Bocquillas Canyon can be leaden at midday. It improves toward the end with views of the enormous Sierra del Carmen range, the northernmost extension of Mexico’s Sierra Madre Oriental. 45 miles long and up to 8,920 feet high, its pink limestone escarpment towers over Big Bend’s Sierra Del Caballa Muerto, some 7000’ above this portion of desert floor. It’s a fabulous backdrop but it’s in Mexico and Big Bend visitors can’t get there. Mexicans can barely get there. The Sierra del Carmen is a very isolated range.

Sierra del Carmen

Sierra del Carmen


At 1,800 feet elevation this corner of the park is one of the driest and hottest parts of the Cihuahuan desert. Rio Grande Village gets 4-6” rain/year, most of it in summer thunderstorms. While nighttime lows may be lower than the Chisos, evening temperatures remain comfortable and the campground draws a good winter crowd. It has heavy tree coverage so regaining those mountain views requires a climb onto some of the surrounding foothills. In compensation it has more bird action, at least in February. A raven with an arsenal of sound effects was making a racket on the telephone poll. A cardinal tried to raid my kitchen. And – finally! - some roadrunners, two of them sitting in the sun, wings raised and spread, exposing their butts to the sun. This is how they warm up in the morning. The smaller one seemed insecure and kept looking over his shoulder, like a freshman in the locker room.



The Rio Grande of course has enormous geopolitical significance, the thin line holding back the vast poverty of the rest of the western hemisphere. The US government closed the border at Big Bend in 2002, and signs warned visitors not to cross into Mexico as reentry is illegal and could cost $5000 and/or a year in jail. Other signs warned against buying goods from anyone coming across the river, as the goods may be seized as contraband and the seller fined and deported at the nearest border station, over 100 miles away.


I took the short walk into Bocquillas Canyon - 1,200 foot limestone canyon walls, eroding into a fine sand. It is not much of a physical border, but it is powerful and poignant. Sure enough along the beach were some walking sticks and jewelry with a price sheet and a jam jar for payment. No one was in sight but I could just feel the eyes - of the merchant, of the border patrol? The tension brought an odd dissonance to an otherwise placid scene. I spotted a canoe on the Mexican bank and assumed it belonged to the merchant, and in fact I came back a couple of days later in the late afternoon and saw the guy rowing across the river. A group of boys on burros waited for him on the Mexican side.

souvenirs


I wasn't sure of the etiquette or, frankly, the safety of the situation, but I continued my slow saunter in his direction and when I got to within earshot he called out "Don't worry amigo I am not going to hurt anyone. I am just selling souvenirs." So I asked him "How's business", and he said "slow", as I would think it would be on an empty beach with signs warning visitors against buying his goods. I had seen another collection of very similar looking crafts further up the beach and he said they belonged to someone else. Competition! I wanted to ask him if anyone buys anything, whether there is any enforcement on this beach, if he ever gets caught and deported, if people took stuff without paying for them and if he and his boys had any means for dealing with that. But I didn't ask any of this. I just went along my walk through the light and the sand while he returned across the river for home.

Boquillas Canyon

 
US-Mexico
Rio Grande



Rio Grande


Ironically, it is Mexican water providing the border so important to the US. While the Rio Grande rises in the Colorado Rockies, the farms and communities of Colorado and New Mexico suck it dry, so by the time the river gets to southern New Mexico it is barely a collage of drifting puddles. It rarely exists at all past El Paso. The water doing border duty comes from Mexico’s Rio Conchos, flowing down from the western Sierra Madres and joining the Rio Grande at Presidio some 100 river miles outside the park. 

 

This is the result of a 1944 treaty in which the US allows some water from the Colorado River to flow into Mexico while Mexico guarantees a certain amount of Rio Conches water to replenish the Rio Grande. Normally supplies are tight, but in September 2008 the Rio Conches flooded and the Rio Grande ripped through Big Bend, damaging the campground and the nature trail. It was the first flood in 15 years and the biggest one on record.




Santa Elena Canyon

The drive to the Santa Elena Canyon at the other end of the park is more exciting. It even has a name: The Ross Maxwell Scenic Drive. Terrific roadside volcanic mountains such as Goat Mountain, Cerro Castelon, and Burro Mesa rise 1,000-2,000 feet above. With little rainfall to hasten erosion and sparse plant coverage, the individual lava flows and ash deposits can be distinctly identified and traced. Some interpretive signs pitch in. Bluebonnets in season.


Goat Mountain

Goat Mountain

Cerro Castelon

Cerro Castelon

Burro Mesa


Burro Mesa

Bluebonnets




Santa Elena is even more daunting than Boquillas, in part because it faces the road straight on, the river emerging through a dark defile of a mountain wall rising 1500 feet high on either side. A rough trail extends about a mile into the canyon and I spent an hour and a half perusing it. It is darker than Boquillas, positioned to get less sun. The rock looked both darker and harder, even though the books says it’s the same rock. The walls have spectacularly delineated sedimentary layers and huge boulders crowd the canyon. A tempting light shines at the end of the tunnel but for the pedestrian it remains only a glimpse.

Santa Elena
Santa Elena Canyon

Stratification




For all its import Rio Grande is just a river, and the first freely running river I'd seen in months. At one point a large sand bar directed much of the flow over toward the US side, creating a narrow rapid channel complete with riffles and whirlpools running along a bank rich with vegetation. I sat there for a sweet while, coming as close as I come to meditation. Oh, my heart cries out for rivers.

Narrow Channel



But high jinks, there were high jinks. I was hopping about on the enormous boulders lining the river and at one point I came across some mud I needed to cross. The mud had footprints so I assumed it was OK, that is if I thought about it at all, but when I jumped down my left leg immediately sunk to my thigh. The mud kept sucking for more but luckily my right leg had hit more solid ground and held, buckling to the knee, and I was able to dredge my other leg out, along with about 10 pounds of mud. Quicksand! I suppose I knew it really existed, but I associate it with old TV shows like Lassie or Bonanza, needing a dramatic rescue or some frontier justice. Yet here it is, alongside a one-mile National Park trail. What an educational trip.



Once outside the canyon the river opens up onto sand bars and sandy beaches. I sat on the beach in the afternoon and read for a while, thoroughly alone, except for maybe the hidden eyes. No souvenir merchants ply this strip. I thought of the Berlin Wall and the Iron Curtain, borders once harshly defended that were no longer borders at all, and how one can now go from Moldova to London by waving an ID. And I thought of communities divided by new borders, the wall Israel has built around Gaza and the fence my campground neighbor thinks should be built along the entire Rio Grande. "It worked in San Diego". I suggested the Texas desert might be too big for such a fence but he said no, the money was there but Bush refused to do it - "It's all politics" he concluded - fair enough I figured, given we were a democracy, "and Obama sure won't do it."



Above all I was struck by the significance of what was not there on this warm sunny day. This is the only water around; the beach should have been crowded with people swimming and basking, the river a bevy of beach balls and rafts. But it was empty, save for the slow stream of tourists from the US side coming in for a quick view of the canyon before going on to the rest of the park. This should be an international park, and one day surely will be. But not in my lifetime.

US-Mexico-US-Mexico



Desert

Mountains and river notwithstanding, Big Bend National Park is comprised primarily of desert. This is the Chihuahuan Desert, the fourth and final one along my southwest journey. The Chihuahuan is the largest of the North American deserts, though as with the Sonoran Desert, most of it is found in Mexico. Unlike in the Mojave or Sonoran deserts, no dominant indicator plant - no Joshua Tree, no Saguaro - presides over the Chihuahuan landscape. The tallest plant is typically the familiar ocotillo, so thin and whip-like here in winter you hardly notice them (unless you inadvertently grab a hold of one).



Here the indicator plant, found throughout the Chihuahuan desert and nowhere else, is the comparatively inconspicuous lechuguilla. It grows a foot or two above the ground in bunches (basal rosettes) of thick green shoots that culminate in points sharp enough to earn it the colloquial name “shin-dagger”. They can reproduce clonally, and sometimes render extensive areas impassable.

lechuguilla

Lechuguilla



Lechuguilla is an agave, one of three agaves in Big Bend. A competing agave, familiar from the Sonoran Desert, is the Havard agave. Its rosette is taller and more expansive than the lechuguilla and has absolutely vicious spines. It seems fairly easy to distinguish from the lechuguilla but I kept getting stumped and couldn’t figure out why. I was later relieved to learn that the third Big Bend agave is a cross breed of the Havard agave and the lechuguilla; it looks like a large lechuguilla or a small century plant. Well hell...

Agave

 A few scattered agaves had skinny shoots reaching high into the air. Agaves, I would learn, bloom but once in their lifetime, waiting 10, 20, even 50 years (not 100, despite the sobriquet “century plant”) and then abruptly sending up a flower stalk 8 to 10 feet in just a few weeks. They bloom for a short period of time and then die, exhausted. Further complicating identification, neighboring yucca and sotol pull the same shooting stalk stunt. Dead stems of all these species litter the desert floor, their spines potently sharp.



Still to my eye the most visually commanding plant was the Prickly Pear cactus, with pads the size and shape of ping-pong paddles. This is the most widely distributed of any cactus and I’ve seen plenty of them, but elsewhere they are typically small clumps along the ground you have to be careful not to step on. Here they were often walls of 100 of more paddles, six feet high and wide as well. Their skin has a waxy sheen and their needles are a highly reflective silver and so they send a glittering light across the desert in the afternoon light. One Prickly Pear species unique to the Chihuahuan desert is called the purple-tinted prickly pear, which really understates its range of rosy hues. I would need a color dictionary.

prickly pear













Late February afternoons at Big Bend, as the sun lowers at 3, 4, 5:00, the desert glows! The rocks glow. The cacti glow. The creosote glows. The tree-brush that seems to grow along with the creosote here, leathery, leaves, pale green - it glows the most. I began to conclude that the Chihuahuan was my favorite desert. It is more colorful than the Sonoran, generally a golden brown tint but also green, silver, and purple. Of course I visited both deserts in winter, with nearly nothing in flower, so my opinion was highly provisional. But clearly if I stuck around I would need to study botany to sort out my confusion between agaves, sotol and yucca, and maybe learn the name of that glowing pale green tree-brush.



creosote in glow






Chihuahuan team picture








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