Can you enter Sichuan from Wujiang River Basin in ancient times?

The route of "Huguang filling Sichuan" into Sichuan in Ming and Qing Dynasties

1, from the Yangtze River waterway into Shu

Immigrants along Jianghan Plain waded into Chongqing and diverted to Sichuan along the Yangtze River and across the Three Gorges. This is a waterway from Xiaogan and Macheng in Hubei to Sichuan, and it is also the one with the largest number of immigrants settled in Sichuan. After these immigrants entered Sichuan, some chose a satisfactory place to settle down once, and some moved twice, three times or even four or five times before they settled down.

2. Take the dry road from Sichuan to Shaanxi and enter Sichuan.

Immigrants entered northern Sichuan from Sichuan-Shaanxi Post Road and neighboring counties, and changed from "covering an area of mu" to "flowers and plants". These "flowers" were places with convenient transportation and fertile land at that time, and were places where many immigrants from other provinces settled. Some of them entered northern Sichuan and moved into Sichuan Basin. The number of immigrants from Shaanxi to the south by dry road ranks second.

3. Take the dry road from Guizhou to Sichuan.

Immigrants entered southeast and south Sichuan from Guizhou by dry road. From the eighth year of Qianlong (A.D. 1743) to the thirteenth year (A.D. 1748), more than 243,000 people entered Sichuan from Guizhou. In the past five years, the number of immigrants entering Sichuan through Guizhou has averaged nearly 50,000 per year. The number of people entering Sichuan from Guizhou ranks third.

4. Re-migration in Sichuan

There are three routes for immigrants to migrate after entering Sichuan: the first is the northern route, that is, from eastern Sichuan to Guang 'an to Yilong, or to Bazhong and Tongjiang; The second line is the western line, part of which reaches the Chengdu Plain and surrounding shallow hills, and part of which goes south to Lu Xian, Fushun and Longchang in southern Sichuan. Third, the southern line, that is, the immigrants from Guizhou to southern Sichuan migrated again and settled in the rural areas in the middle and lower reaches of Tuojiang River.