Quote from TimmyCheeseburgr
There is a Awesome Mountain seed I found for 13w39b snapshot (1.7 snapshot) Thats Really cool. Seed > 105560318
Hope you Enjoy it!
Checked this seed with 1.6.4 it is frigging amazing diffidently the one you are looking for might add it to my server Just because it would be great for my RPG world. The mountains top out at about 124 which is cloud hight