Clutter is not an attribute of information, clutter is a failure of design...fix the design rather than stripping all the detail out of the map.
Edward TufteThe minimum we should hope for with any display technology is that it should do no harm.
Edward TufteIf there is a well thought-out design standard, it should be followed. In practice, great design comes from great designers. That is empirically the case. If a great designer did a first-rate standard, that model should be followed. Great design is not democratic; it comes from great designers. If the standard is lousy, then develop another standard.
Edward Tufte