Integra Gold Corp. Introduces Leapfrog(R) as Official 3D Modelling Partner, and Engineering Firm WSP I Parsons Brinckerhoff as Geoscience Partner in the $1Million Integra Gold Rush Challenge VANCOUVER, BC--(Marketwired - August 20, 2015) - Leapfrog®, Official 3D Modelling Partner, to offer Leapfrog Gold Rush software licences to all registrantsWSP to provide Geoscience technical support...