: This site is an excellent source for high-resolution topographic data, including LiDAR, provided by OpenTopography .
: For those in New Zealand, topos.nz offers free online and offline mobile access to LINZ topographic data. Quick Guide to Reading Topo Maps Topo Map Free
To effectively use these free resources, remember these fundamental rules of contour lines: How to Make Printable Topo Maps for Free : This site is an excellent source for