In Columbia’s Great Outdoors, Leave No Knot Untied

Disclosure: I helped write the copy for the following iPhone App from Columbia Sportswear.
When you’re bivouaced high above the valley floor on El Cap, there’s little room for consulting a classic how-to book on knots. But when that book is repurposed for the iPhone, it’s a different story.

Columbia Sportswear’s first iPhone App, “What Knot To Do,” features 70 knots in six categories. With this App you’ll always have just the right knot at the ready, with clear step-by-step tying instructions to meet any and every outdoor need.
Unlike some of the other Apps in this category, Columbia’s is free. So go get it and start practicing your Ashley’s Bend, Constrictor Knot and Mooring Hitch among others.