From Great Basin National Park in Nevada through central Utah’s magnificent canyons and mountains, we drove on to Dinosaur National Monument at the Utah-Colorado border.
Paleontologists from the Carnegie museum discovered the fossil remains of huge sauropods here early in the 1900s, and the site was quickly designated a national monument in 1915 to preserve it for more exploration. Thousands of fossils of the giant herbivores (like Apatosaurus) and carnivores (like Allosaurus) were excavated and shipped back to the Carnegie museum in Pittsburgh.
The next day driving along the Yampa river, we saw hundreds of little black blobs crossing the highway. I thought they were rocks but the boys saw them moving, so we stopped to look.
These are the insects that decimated the crops of early Mormon settlers in Utah. They are not really crickets, but are related to katydids. As shown in the photo, they are flightless, but move quite quickly on the ground. Although these insects usually exist in low density, occasionally huge numbers are produced in the spring. As they develop into adults over the summer, they form a swarm (with densities of hundreds of individuals per square meter) that migrates over the land, consuming everything in its path to find new areas to colonize.
You know you’re entering the Midwest when you cross the Continental Divide, which we did several times as we descended the eastern slopes of the Rocky Mountains, driving through some of the prettiest and greenest mountain meadows I’ve ever seen.
Scotts Bluff stands high above the surrounding plains and was a visible landmark for early travelers of the Mormon and Oregon trails. Later the Oregon trail went right through this pass, adding over 200,000 travelers to the westward expansion.
The next two days were simply a push for home, through the sand hills of Nebraska, which were surprisingly green and wet, then through the unending landscapes of corn and soybean fields of Iowa, and finally into the Minnesota river valley and home.