WorldWorksGames is offering a free set of Cliffs to expand their Hinterlands paper terrain set.
From their website:
Hey gang, just to let you know the response to TLX Cliffs has been great, so as a special thanks to you the loyal fanbase WWG is pleased to offer up these tall cliff edges for the low, low price of absolutely nothing. Use them alone as rocky projections, glue them together to make interesting hill shapes or just add them in to your Hinterland Cliffs build for even more visual interest and tactical variety. And if you don’t have Hinterlands Cliffs yet, then go ahead and download these new extra bits, check ’em out, and see what you’re missing.