Definitions for "Gold rush"
a large migration of people to a newly discovered gold field
Rapid movement of people into an area where gold has been discovered. In the case of the Fraser River gold rush in British Columbia, and the Klondike gold rush in the Yukon, the population of both areas increased greatly in a very short period.
The wild scramble by prospectors to reach the new goldfields.
Whilst digging up the hershey highway you get a nugget of sweetcorn stuck in your jap's eye. - Prone, London
Keywords:  lik, unregulated, jars, fortune, boom
a sudden happening that brings good fortune (as a sudden opportunity to make money); "the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed lik an assembly line"
Keywords:  rapid, movement, people, large, area
a large, rapid movement of people to an area where gold has been found