"Gambling" in the country involves cheating.
Gambling is the betting of cash or something of significant worth on an occasion with a questionable result with the essential purpose of winning cash or material products.
Gambling , the wagering or staking of something of significant worth, with awareness of hazard and any desire for pick up, on the result of a diversion, a challenge, or an unverifiable occasion whose outcome might be dictated by possibility or mishap or have a surprising outcome by reason of the bettor's erroneous conclusion.
I'm assuming you mean topographic maps, in that case C. Elevation
You might conclude that the ridge would get bigger and iceland would be halved
