Need Help/Opinions

So with this project I’ve been working on I have decided that I’m thinking Portland, Oregon would be a great location for my game.

I am still quite novice with everything but while looking on good maps I have found what I think would be a good area to try and base my map off of.

This is the area I was looking at:

#1. Is that too big of an area?
#2. What would be the best way for me to get a proper heightmap with google maps like this?

If anyone can help me out that would be greatly appreciated! thanks!

Hi

3.46 mile map is a big map. so at normal walking speed of a human, that would take just over 1 hour in a direct straight line to walk from one size to the other. But you have not said what type of game, 1st person, flying, city builder? All of these are going to make a difference.

Height maps can be got using programs like - L3DT.

It’s going to be an open world sort of survival game.

Maybe something more like: Google Maps
?

Ok

Days Z - Chernarus is 225 sq km, that might give you a comparison.