> A colony will depend on the mother country / planet for quite some time, but has a chance to become materially independent in 150+ years Boston was founded

> A colony will depend on the mother country / planet for quite some time, but has a chance to become materially independent in 150+ years Boston was founded in a breathable atmosphere and a livable climate, in a land that contains building materials, wildlife, liquid water, and arable soil, all shielded from cosmic radiation by Earths magnetic field and in a gravity well our physiology has evolved to cope with. Yes, life for the colonists was hardship and back-breaking work, but the basic building blocks for survival existed. Which of these blocks are present on Mars?