The Badlands National Park, one of the most popular attractions in western South Dakota, contains one of the world’s richest fossil
Visitors can enjoy hiking on eight routes from 400 meters to 160 kilometers long and
2 . If you’re a camping lover, the scenery of the following campsites will provide you with an experience that you will never forget.
North Rim Campground, Grand Canyon, Arizona
Address: North Rim, AZ 86052, USA
Camping in the famous Grand Canyon, with its layers of million-year-old red rock, is the favorite thing for many people. After all, it is one of the Seven Natural Wonders of the World. You will see rural views of the canyon which is shaded by towering pines. And it is home to vast wildlife including wild wolves and deer.
Apgar Campground, Glacier National Park, Montana
Address: US Hwy 2, West Glacier, MT 59901, USA
There are plenty of original forests, mountain meadows, lakes, and rocky mountains in Glacier National Park. Adventurous visitors and campers visiting Montana enter a hiker’s paradise when coming here. Apgar Campground is situated among the trees and wildlife there ranges from mountain goats to grizzly bears.
Watchman Campground, Zion National Park, Utah
Address: UT-9, Springdale, UT 84767, USA
Located a quarter-mile from the south entrance of Zion National Park in Utah, Watchman Campground is surrounded by hug sandstone cliffs, tall rocky peaks and pines. There is the Virgin River near the campgrounds, allowing campers access to bike trails along the riverbank plus hiking to a nearby archeological (考古学的) site.
Hidden Valley Campground, Joshua Tree National Park, California
Address: California 92277, USA
For campers wanting to enjoy a unique experience in the desert, sleeping under the starry skies and surrounded by cacti and rock formations, Joshua Tree National Park is the answer. The campgrounds and park become even more breathtaking at sunset when the colors of the sky are noticeable against the vast ground.
1. What will campers enjoy at North Rim Campground?| A．Bike riding along a river. | B．Sunsets against the vast desert. |
| C．Goats and bears in ancient forests. | D．Red rocks formed in ancient times. |
| A．California 92277, USA. | B．North Rim, AZ 86052, USA. |
| C．UT-9, Springdale, UT 84767, USA. | D．US Hwy 2. West Glacier, MT 59901. USA. |
| A．Apgar Campground. | B．Hidden Valley Campground. |
| C．North Rim Campground. | D．Watchman Campground. |
3 . The ruins of a huge Maya city have been discovered in Guatemala with the help of the remote sensing technique LiDAR, according to the National Geographic on Thursday.
This breakthrough was possible thanks to LiDAR sensors, which can survey landscapes in 3D by reflecting laser pulses off the ground from unmanned air vehicles and others. LiDAR is exceptionally useful for detecting archeological sites (考古遗址), as it gets through jungles and other features that hold up exploration on the ground. The technique has been the activator (催化剂) of many discoveries in recent years. For instance, major finds at Angkor, Cambodia and Caracol, Belize can explain what it did.
This large lost city envelops sites like Tikal, Holmul, and Witzna—known for their temples and pyramids—but shows that these famous heritage areas are the tip of the iceberg of this lost urban network.
Hidden under the jungles of the Maya Biosphere Reserve, more than 60,000 human-made features—homes, canals, highways, some of which can even reach the modernized standard—have been identified by an international cooperation of researchers headed by the PACUNAM Foundation, a Maya cultural and natural heritage organization. Those have experts rethinking the outlines and complexity of the Maya empire.
These ancient peoples obviously established these imaginative cultures based on their known relics, but the new research has shown that the scale of this lost society is far beyond what experts had imagined. The findings will be explored in an hour-long documentary called Lost Treasures of the Maya Snake Kings, premiering (首映) Tuesday, February 6 on the National Geographic Channel.
“There are entire cities we didn’t know about now showing up in the survey data,” said Francisco Belli, one of the lead archeologists on the project. “There are 20,000 square kilometres more to be explored and there are going to be hundreds of cities there that we don’t know about, and we will push the frontiers,” he added.
1. What can we know about LiDAR?| A．It’s a breakthrough in archeology. | B．It’s major equipment in air forces. |
| C．It was first used in discovering a Maya city. | D．It’s a remote sensing technique using laser pulses. |
| A．The jungles of the Reserve. | B．The outlines of the Maya empire. |
| C．The researchers of the organization. | D．The man-made projects of the Reserve. |
| A．Famous and dangerous. | B．Vast and highly developed. |
| C．Mountainous and aggressive. | D．Enormous and traditional. |
| A．Restudy the history of Maya. | B．Use the LiDAR sensors as usual. |
| C．Continue to explore the unknown. | D．Study the documentary more carefully. |
