A ground-up update to the standard reference for the Purcell Mountains, last revised back in 1977. David P. Jones has rebuilt the guide from route to route — 600 peaks, over 1,000 documented lines, and more than 400 colour photographs to help you match what's on the page to what's actually in front of you on the approach. With over 400 of those routes falling into scrambling territory, it's as useful for a first alpine outing as it is for a technical objective.