The Uncle Sam would be the first of many steamboats on the Colorado River .
It would also carry the engine , boiler and wood to assemble the side - wheel paddle steamer tug , Uncle Sam to the Colorado River Delta .
The Uncle Sam would be the first of many steamboats on the Colorado River Delta   .
It would also carry the engine , boiler and wood to assemble the side - wheel paddle steamer tug , Uncle Sam to the Colorado River Delta .