Fair point, but my solution would be easy - bribery. Simply cut the deal with corrupt local authorities to turn a blind eye in exhange for a cut. The more money USSR would be able to make by mining in Burkina Faso, the higher theirs cut would be. We are talking about Africa, so finding somebody willing to help us in exhange for money should not be a problem at all.Yup, I've been thinking about it and theoretically you could mine the ore and melt it to purity locally, then airlift it out. But we're talking about 32 tonne of Gold, nevermind all the other minerals etc. Plus you need a lot of goods to humanely mine it, some of it extremely toxic.
So how do you get it in and out, with hostile neighbours?