When it comes to the black gorge near Nevada and Arizona, it''s not big or small.

    Sun Cheng had investigated before coming. Heixia covers hundreds of square kilometers, but most of the nearby areas are dry desert areas, which are easy to eliminate under the desolation.

    After arriving at Heixia, he only wandered for a long time. After sun Cheng found that the clue had been completely broken, he had no choice but to turn his attention to the most famous Hoover dam here.

    "Since you''re here, you might as well go and have a look. Anyway, you won''t lose a hair!"

    Although he suspected that the black gorge mentioned by Professor Brewster, who once worked at the University of Arizona, was here, he didn''t think much about Hoover Dam.

    After all, according to the clues he investigated, the mysterious meteorite found in the baglin crater was transported around 1913, while the Hoover Dam was started 20 years later during the U.S. economic crisis. There is a gap of nearly 20 years between the two. No matter how he opened his mind, he can''t think of the two things together.

    "Am I wrong? Professor Brewster''s black gorge is not here at all?"

    Through the already dark sky, sun Cheng quietly approached the Hoover Dam, but he couldn''t help muttering in his heart.

    In the past few hours, with the ultra-high maneuver of the new body, he has run all the suspected places nearby, but he has never found any suspicious places, which makes him a little disappointed.

    Just two kilometers into Hoover Dam in the dark, he suddenly felt that the [spy template] in his body captured the monitoring equipment. Cautiously, he stopped immediately.

    After hesitating for a moment, sun Cheng released two groups of insect scouts and flew towards Hoover Dam.

    Now, he can''t easily go to attack the base that he thought could be used as his own half supply station for the time being.

    Without the supply point, sun Cheng can sneak into the weapons store in the rotten streets of the United States to get some bullets for use. In addition, his other major reliance - the insect detector is used one less. This thing is disposable. Although its function is powerful, it can''t help but its range is only ten kilometers, and its endurance time is too short, so there is almost no possibility of recycling.

    The two groups of insect scouts dutifully approached Hoover Dam and transmitted the captured images one by one.

    "Well, so many monitoring equipment are installed near Hoover Dam..."

    Not far from the Hoover Dam, on the top of the steep mountain wall on one side of the canyon, sun Cheng carefully investigated the Hoover Dam with the help of the insect detector released from the outside. He began to hesitate whether to go to explore the Hoover Dam at night.

    After reading the data received by the insect scout, he was surprised to find that within two kilometers near Hoover Dam, the insect scout successively captured two or three hundred groups of monitoring equipment, which was even denser than the Davis Mengshan Air Force Base he had invaded before.

    The said that Hoover Dam is worthy of being a vital water control project on the Colorado River. In addition to intensive monitoring equipment, insect scouts also found hundreds of security personnel stationed around the dam.

    From the images taken by the insect scout, the security personnel near the dam were not only equipped with a large number of light and heavy weapons, but even anti-aircraft missiles were captured by him.

    "Worthy of being an important water conservancy hub in the United States!"

    This kind of precaution is also worthy of the Hoover Dam. Seeing that the energy of the two groups of insect detectors released by him is about to run out, sun Cheng thought about it and simply came. He simply gave them an order to continue the exploration and directly let them enter the dam through the elevator channel and exhaust pipe.

    Like most countries, the Hoover Dam is also allowed to be visited by tourists. It is said that the tickets are very cheap and open to the public seven days a week.

    It''s just that sun Cheng looks like this now. It''s estimated that people can''t see him without one shouting to fight and kill.

    It is estimated that this is the common reaction of all countries on earth when they see a single alien life and the other is still a robot.

    A group of insect scouts down the elevator to the inside of the dam failed to find anything more. The internal scenes of the dam photographed can basically be found on the Internet, and sun Cheng has seen almost all of them.

    Deliberately direct it to some areas where tourists are not allowed to enter. Who knows that its energy has been exhausted. I don''t know which corner it fell into.

    But another group of insect scouts, through an exhaust pipe, went directly into the forbidden area inside the dam, and as a result, many images were transmitted back.

    What sun Cheng didn''t expect was that it finally sent back a group of images before it ran out of energy, which surprised him.

    "... wait, there are several passages hidden in the mountain next to Hoover Dam?"

    Sun Cheng was immediately surprised by the discovery of the insect detector. According to his investigation, most of the mountains near Hoover dam are hard andesite and breccia. Channels are opened in such places, and the channels are large and small. The small ones are obviously for human access to office, but steel rails are laid in several huge channels, which are obviously used to transport large machinery, This discovery immediately interested him.

    "Strange, are these facilities really needed by a water conservancy project? It looks more like a large military base anyway? Is it..."

    Suddenly aware that he may have continued the clue, sun Chengqiang endured his inner excitement, quietly avoided one monitoring equipment after another, went all the way down from the cliff, and soon reached a flood discharge pipeline under the dam.

    The spillway can lead to the inside of Hoover Dam, but there are three gates on the way to prevent water from pouring back into the dam during flood discharge.

    However, this is not difficult for sun Cheng, because it is the flood season of the Colorado River in April and may, and the Hoover Dam will carry out small-scale flood discharge at night, which gives him an opportunity to let Sun Cheng sneak into the interior from the flood discharge mouth.

    Just do it. Although the water column from the spillway made his scalp numb, he jumped into the spillway after using the core to calculate the impact force and came to the conclusion that he would not be washed away with all his strength.

    "Pa!"