Southeast-facing photograph of balancing boulders on Guadalupe Peak Trail at approx. 6,640 ft. in Guadalupe Mountains National Park.

Photograph of the scape, capsules, and flowers of an Agave americana in the Guadalupe Mountains National Park between approx. 6,000-8,000 ft. elevation. Forested mountain slopes are visible behind the plant.

Photograph of a section of bollard-style pedestrian border fence in Brownsville, Texas, with electrical boxes in the nearest section of the fence. It was erected by U.S. Homeland security in the late 2000s as part of the "Secure Fence Act of 2006."

South-facing photograph of a bunk/guest house at the Frijole Ranch Cultural Museum in Guadalupe Mountains National Park. The building is made of white stone and is a single story, with a wooden hatch for a basement or cellar.

Photograph looking southeast over El Capitan and valley floor from the Guadalupe Peak Trail at approximately 8,500 feet.

Photograph looking south over El Capitan from the Guadalupe Peak Trail at approximately 8,500 feet. The Guadalupe Pass, Brushy Mesa, and the Pinon Hills are visible beyond the peak, as well as U.S. Route 62 / U.S 180 and state highway 54 to Van Horn on the valley floor.

Panoramic photograph of Guadalupe Mountains National Park and the surrounding Chihuahuan Desert as seen from the El Capitan Lookout on U.S. Route 62 / U.S. Highway 180 between Pine Springs and Salt Flat, Texas, at an elevation of 4,932 feet.

Eastward-facing photograph of the Queen Isabella Causeway and South Padre Island, taken from atop the Point Isabel Lighthouse.

Photograph of statue entitled, "Cristo de los Pescadores" in Isla Blanca Park on South Padre Island north west of the Jetties. The statue is on top of carved, stacked blocks of stone that have small plaques on them and it is behind a carved stone marker that has text and illustrations of a ship and anchors.

Photograph of statue entitled, "Cristo de los Pescadores" in Isla Blanca Park on South Padre Island north west of the Jetties.

Photograph of the Czech Stop And Little Czech Bakery. Well known roadside stop for kolaches on Interstate 35 in West, TX.

Equirectangular panoramic view from Guadalupe Peak in Guadalupe Mountains National Park. Shot from atop the stainless steel pyramid which has been digitally removed.

Photograph of Pine Springs Visitor Center in Guadalupe Mountains National Park. Hunter Peak rises behind the American flag.

Staff person from the rescue and rehabilitation organization, "Sea Turtle, Inc" on South Padre Island live-streams the progress of Kemp's ridley hatchlings moving towards gulf waters at sunrise.

Photograph of the exterior of the Frijole Ranch House and Cultural Museum in Guadalupe Mountains National Park.

Southwestern facing photograph of Guadalupe Mountains National Park entrance sign on U.S. highway 180 / Route 62.

Southwestern-facing photograph of the Guadalupe Mountains National Park entrance sign on U.S. highway 180 / Route 62. The sign has a stone base with the National Park Service logo on the right side; mountain peaks are visible in the background.

Photograph of Guadalupe Peak from near peak campground turnoff in Guadalupe Mountains National Park. Approx. elevation: 8,150 ft.

Photograph of Texas Historical Commission Marker entitled "Guadalupe Peak" in front of a low stone wall. Desert mountains are visible in the background.

South-facing photograph of two hikers on the Guadalupe Peak Trail in Guadalupe Mountains National Park. Approx. elevation 8,300 ft.

Photograph of historical marker entitled: "Battle of Palmito Ranch." Text reads: "The last land engagement of the Civil War was fought near this site on May 12-13, 1865, thirty-four days after Robert E. Lee surrendered at Appomattox. Col. Theodore H. Barrett commanded Federal troops on Brazos Island 12 miles to the east. The Confederates occupied Fort Brown 12 miles to the west, commanded by Gen. James E. Slaughter and Col. John S. (Rip) Ford, whose troops had captured Fort Brown from the Federals in 1864. Ordered to recapture the fort, Lt. Col. David Branson and 300 men advanced from Brazos Island. They won a skirmish with Confederate pickets on May 12. Barrett reinforced Branson's troops with 200 men on May 13 and renewed the march to Fort Brown. Confederate cavalry held the Federals in check until Ford arrived with reinforcements that afternoon. Ford's artillery advanced and fired on the northern end of the Federal line while the cavalry charged. The Confederate right charged the southern end of the Federal line and captured part of the Union infantry. Barrett ordered a retreat toward the U.S. position on Brazos Island. While the Confederates reported no fatalities in the Battle of Palmito Ranch, …

Photograph of state historical marker located near the salt flats of Hudspeth County. The marker has several gunshot markings and reads: "Resentment over private control of the salt lakes in this region, often called Guadalupe Lakes, led to the El Paso Salt War. - Erected by the State of Texas 1936."

Photograph of a historical marker commemorating the last battle of the Civil War. The text reads: "At This Site -- The Last Battle of the Civil War, Known as Palmito Hill, was Fought by Confederate Troops Under Colonel John S. (Rip) Ford and Union Forces on May 13, 1865, 34 Days After Lee's Surrender at Appomatox -- Erected by the State of Texas -- 1936"

Photograph of Historical Marker entitled: "Site of Camp Belknap." Text reads: "In May 1846 when war was declared against Mexico, the U.S. Congress authorized the raising of 50,000 volunteer troops to supplement the regular U.S. Army. General Zachary Taylor was quickly inundated with volunteer soldiers arriving at Brazos Santiago, and was forced to place them in temporary encampments. Camp Belknap, located on this site, was established in the summer of 1846. The camp was located on a long narrow rise of land, measuring about 2 miles in length and one-half mile at its widest point. It was the first high ground encountered after leaving the Gulf Coast. Thought to be the largest encampment for volunteer soldiers, troop estimates total 7,000-8,000 men including several regiments from eight states. Soldiers suffered exposure to the elements, unsanitary living conditions, overcrowding, biting insects, thorny plants, and disease. Many died a premature death, often resulting in one two two funerals daily. No enemy attacks took place despite one false alarm. During August and September most of the volunteers were moved upriver either to camps nearer Matamoros, or further to Camargo. The camp was completely empty by December 1846." Marker is dated 1996 in the lower-right …