Uncharted Journeys provides a wealth of information, rules, and encounters to make travel a key part of your 5e adventures. The book includes

• Easy to understand rules for journeys and exploration: Set the Route to your destination and determine how long (and how dangerous) the journey will be; Prepare by gathering supplies, securing mounts, and resting before the long road ahead; and finally, Make the Journey and experience strange and unique encounters along the way, and be forever changed by your experiences.
• Rules for four key Roles required for a successful journey: the Outrider, the Quartermaster, the Sentry, and the Leader. Each Role has a unique ability that can be the difference between success and failure on the treacherous paths you travel.
• Advice on which Classes are best suited to which Roles, as well as new rules for resting and recovering Class abilities while on a long journey.
• New ways to create unique and interesting travellers you meet on the road: Where and when do you meet them? Are they friend or foe? Where are they going? Why are they travelling? What do they want? 
• Rules for creating countless ancient ruins that your party can discover: who built them, how old are they, and who lurks there now? Is it an archive containing forgotten elven lore, or was it created by an ancient civilization for some sinister purpose?
• Almost 2,000 Journey Encounters across 16 different regions, including huge cities teeming with people, thick jungle overrun by beasts, haunted lands ruled by a malicious Vampire Lord,  and scorched hellscapes ruled by demons and monstrosities.