Actually ANWR is a fairly large region - hundreds of thousands of acres mostly snow and ice - but the “footprint” which would be used for drilling is quite small - about one-quarter the size of Manhatten - and since virtually no one ever visits the ANWR region, the idea of keeping it “pristine” is really a sham.......
Alaska is something like 20% of the entire US land mass. It’s five times the size of California, and 2.5 times larger than Texas.