Second, the right trees must be present. You will not find truffles under maples, for instance, because maples do not form ectomycorrhizae. Third, truffles use animals for spore dispersal. In North America, squirrels and chipmunks are the major wild animals dispersing truffle spores. Search among the right trees for pits dug by rodents in their own hunt for truffles.
Rodents also dig pits searching for acorns, onion bulbs, and beetle grubs.
The best success results from raking around fresh pits. Look for pits not filled with leaves or other debris. A good eye is required as many truffles are small and colored red, brown, white, or even black. Bring a supply of small paper bags for taking your truffles home. Write your collection notes on the bag before putting the truffles inside it.