Like most maps, this one has a projection, and Lambert's conformal conic is the name of the equation behind, below, and between every flattened shape on this beautiful America. It's not perfect ...

Projections which are shape-preserving are called conformal. Many popular map projections are conformal. For a sailor plotting a course it is convenient to maintain a constant direction or compass ...

As proposed by Greeley et al. [1990] the projections are conformal, the quadrangles overlap and the scale of the poles was chosen such that the circumference of the stereographic projection is ...