The Maurice Bay deposit contains about 1.5 million pounds uranium grading 0.6% U3O8 to a depth of 50 metres.
Forum and Mega plan to test and expand the potential of the known mineralization and to locate new deposits.
Initially, five areas have been selected to be covered by a ground gravity survey starting in mid-March.
Gravity surveys of this type are designed to identify zones of lower density hydrothermal alteration, which are typically in spatial association with uranium deposits in the Athabasca basin.
Drilling is scheduled for later this year on Zone 2A, plus other targets, including those generated from the gravity survey.
Cameco owns an 87.5% participating interest and Areva a 12.5% interest in the North West Athabasca project.
Forum and Mega have signed a 50/50 joint venture agreement to manage the exploration program during the earn-in period with Forum as initial operator.