I’ve posted articles about topographic maps before on my blog, namely my contour map effect Illustrator tutorial and my free pack of topographic map patterns. My first tutorial used Illustrator’s Blend tool to draw a series of concentric lines. It worked pretty well, but I went on to develop a technique that would help create more detailed and repeatable patterns, which I used to create that freeb
![How To Create a Seamless Topographic Map Pattern](https://cdn-ak-scissors.b.st-hatena.com/image/square/a78822f917218ce4a491638aa6b5c6be1ad2aeb8/height=288;version=1;width=512/https%3A%2F%2Fblog.spoongraphics.co.uk%2Fwp-content%2Fuploads%2F2015%2F02%2Ftopographic-map-pattern.jpg)