National Geographic Maps has just added a tear-resistant, waterproof paper intended for printing topo maps on an inkjet printer to their on-line store. I have not tried it so I cannot vouch for it's quality or compare with Write-in-Rain.<br> <br>Here's the info and a link. <br><br>Adventure Paper <br>Print durable custom maps, outdoor signs and banners using National Geographic Adventure Paper. Designed for use with TOPO! digital mapping software, this durable, tear-resistant, waterproof media can withstand the rigors of the great outdoors. Adventure Paper is environmentally safe, easily foldable, and withstands a wide range of temperatures.<br><br>Each package contains 25 sheets of 8.5" x 11" print material designed for use with inkjet printers.<br><br>Note: Adventure Paper is not intended for use in laser printers.<br><br> <br>ID #: W79-100 <br>Price: $19.95 each <br> <br>http://www.trailsillustrated.com/acb/showdetl.cfm?&DID=15&Product_ID=1082&CATID=35