Chance of Getting lost

A handy table to determine the chance of party becoming lost in a standard high fantasy campaign while traveling in the wilderness.

Getting Lost
	Party Guide
Terrain Type	Ranger	Barbarian	Nomad	Elf/Druid	Gnome	Local Guide	All Others
Desert	16%	20%	10%	16%	20%	15%	16%
Forest, Light	15%	16%	20%	10%	12%	15%	16%
Grasslands	15%	15%	10%	15%	20%	12%	16%
Hills, Rolling	16%	16%	16%	16%	12%	12%	16%
Plains	16%	16%	10%	20%	25%	12%	16%
Scrublands	16%	16%	10%	16%	20%	12%	16%
Forest, Moderate	18%	20%	25%	15%	15%	15%	32%
Hills, Steep	25%	20%	25%	30%	20%	20%	30%
Mountains	25%	30%	33%	33%	25%	25%	33%
Snowy	30%	25%	35%	30%	35%	30%	33%
Desert, Dune Swept	50%	45%	30%	50%	50%	25%	60%
Forest, Heavy	20%	25%	50%	20%	25%	25%	60%
Glacial/Icy	40%	40%	50%	50%	50%	35%	50%
Jungle	40%	40%	50%	45%	50%	35%	50%
Mushroom Forest	35%	45%	50%	35%	15%	25%	50%
Swamp	40%	45%	50%	50%	50%	25%	50%
Thorn Forest	40%	40%	45%	35%	35%	35%	50%
Broken	50%	50%	35%	50%	50%	25%	60%

Local Guides should of course be locals who have traveled the route in question before. Local guides will typically only be good for distance of 50 to 500 miles from place of origin.

If a paryt has one character with INT or WIS of 16 or higher subtract 5% from the chance of getting lost.

If a party has  3 or mor embers with INT or WIS of 16 or higher halve the chance of getting lost.

If a party is traveling quickly increase the chance of getting lost by 10%

If following trusted instructions or a map decrease chance of getting lost by10%

If a party is traveling at night and less than 1 in 3 characters has night vision or infravision double the chance of getting lost.