Defending national defense, patrolling the border and checking the border are the important duties of General Heilongjiang and Deputy Commander Morgan. Every May, Deputy Commander Morgan sent his garrison officers to lead committee of 100 to patrol the border with Deputy Commander Bu Kui (now Qiqihar) and Deputy Commander Ai Hui. Go to the Ergon River, the Russian land west of the river, check the sand and grass on the east coast, check whether there are grazing marks, and prevent the border invasion. Fifty or sixty days each round trip. General Heilongjiang and Deputy Commander Morgan patrol the border every time they take office. Morgan needs to cross the Nuoli River, cross the Xing 'an Mountains in the northwest, cut down trees on each mountain to clear the way, fold the trees into rafts to cross the river, and horses can cross the river by water. After the ceremony of offering sacrifices to mountains and rivers was held at the boundary pillar, the marks kept last year were removed and the patrol situation was recorded again. "The title of each book is the sun and the moon on the wooden sign" and "This is a written law for future experiments". After the inspection was summarized into written materials, it was reported to Deputy Commander Morgan, General Heilongjiang, Li Fanyuan and the Emperor step by step. Border patrol is very hard, the mountain road is empty, and wild wolves pass through it. You need to choose a big tree and peel it off to remember the way home. Cao Meng is many inches long in the mountains. When there is no wind in the sky or it is more intense after the rain, cows and horses bleed and their bodies are naked. Grain is an important supply. During the round trip 100 days, the grain gained a lot. You can hang it on a tree or bury it in the ground and eat it when you come back. However, there are also many joys and sorrows. "Longshalue" records: "After hundreds of miles northwest of Noni, go down and take the road. There are dozens of loose teeth, and the eyesight is high. Through the forest, you can't see the sun at noon. The stone color is mottled, and if Zhao draws his own business. There is a cave with several couches in it, which is as natural as cutting. Walker can take less rest when mowing grass. " Another poem says, "The grass grows longer than the sea when patrolling the border in May, and you can ride west to reach the river lightly." . Pile up high mounds under bare trees and go back to the road to collect food for burial. "
Because of its strategic position, Morgan in Qing Dynasty had a profound economic and cultural background, and agriculture, handicrafts, commerce, transportation and education also developed rapidly. It has become the main distribution center and transit point of the Sino-Russian trade channel. Every year in late autumn, there are hundreds, sixty or seventy Russian business groups. They all went to Bukui for trading through Morgan, which is the Sino-Russian Economic and Trade Fair. Horse, fur, glass, saber, etc. In exchange for cloth, tobacco, ginger, pepper and sugar. Every spring, there is another activity called Chu Lehan, which is the chariot meeting, located more than ten miles north of Bukui (now Qiqihar). It is stipulated that when the grass is green, all tribes and people at risk in Mongolia will come to see each other, and businessmen will move there. In addition to paying mink to Heilongjiang generals, people of all ethnic groups mainly exchange goods. People of all ethnic groups and Russians in the east and north of Nenjiang River went to Morgan City, and the timber from the upper reaches of Nenjiang River was also sold to the lower reaches. During the period of Chu Lehan, Morgan City also became a sea of joy. After a hard and busy hunting season, most people rush their cows and horses to the party. Tugu also contains a saying that people come here on impulse and then return to their hearts. The history book says, "The hoof of wheels is incessant, leather coins are piled up in the mountains, and cattle and horses cover the wild."