Final answer:
Henry Comstock, a Canadian-born fur trapper turned prospector, is credited with founding Virginia City, Nevada, after discovering the Comstock Lode, a rich silver vein.
Step-by-step explanation:
The founder of Virginia City, Nevada, after selling his property that had a massive silver deposit on it, was Henry Comstock. He was a Canadian-born fur trapper who shifted to gold mining before discovering a significant silver deposit in 1859, which was later named the Comstock Lode. This discovery led to a mining boom, turning Virginia City into a bustling hub with its own stock exchange and saloons before it eventually became nearly abandoned.