Such were the adventures of some of those who tried to reach the gold fields of the West by sea. Hundreds of men made the trip by one of these routes, and as soon as spring arrived thousands set out overland. It was understood that large parties would leave from western Missouri early in March, and as a result many men, some alone, some in bands of twenty or thirty, gathered there from all parts of the East. Sometimes they formed military companies, wore uniforms, and carried rifles. The main place of gathering was the town of Independence, which grew to the size of a large city in a few weeks. Men came on foot and on horseback; some with canvas-covered wagons, prairie schooners, and pack-mules; some with herds of cattle; some bringing with them all their household goods. All the Middle West seemed to be in motion. In a single week in March, 1849, hundreds of wagons drove through Burlington, Iowa. Two hundred from Memphis went along the Arkansas River, and hundreds more from Michigan, Wisconsin, Illinois, and Pennsylvania crossed the border of Iowa. The spring was late, and as the overland trip could not be taken until the grass was high enough to feed the cattle, the great company had to wait along the frontiers from Independence to Council Bluffs. As men gathered at these towns they would form into companies, and then move on to a more distant point, in order to make room for later arrivals. Twenty thousand gathered along these frontiers before the signal was given to start westward. The march began about May 1st, and from then on, day and night, scores of wagons crossed the Missouri River, and the country looked like a field of tents. From Independence most of the emigrants crossed rolling prairies for fifteen days to the Platte River at Grand Island. The route then wound up the valley of the Platte to the South Fork, and from there to the North Fork, where a rude post-office had been built, at which letters might be left to be carried back east by any travelers who were going in that direction. From here the emigrants journeyed to the mountain passes. They usually stopped at Laramie, which was the farthest western fort of the United States. By this time the long journey would be telling on many of the companies, and the road be strewn with all sorts of household goods, thrown away in order to lighten the burden on the horses.