http://www.space.com/businesstechnology/technology/technovel_mars_041130.html A proposal for conservation parks on Mars. I think certain areas should be preserved, but these did not make these conservationists lists. I think all the landing sites to this date on the moon and Mars should be roped off a preserved as historical parks. The authors favored instead preserving the entire north polar cap and Olympus Mons, because they are unique in some way. From my view, because they are unique in some they should be exploited. The north polar cap has volatile chemicals that will be useful and Olympus Mons is a logical spot for a space station being near the equator and at high altitude.