Some of these burrows are used frequently by moles and others are travelled in only once. Success is highest when traps are set in active burrows. Burrows that are in disrepair or meander around the surface most likely are used infrequently. To find frequently used burrows, look for fresh sign and a burrow that either runs in a straight line, connects two mounds, or follows concrete sidewalks or other structures. If in doubt as to whether a burrow is active, flatten a small section with your foot.
Moles quickly repair damage to active burrows.
Setting a harpoon trap. In dry and compacted soil, set and release the trap several times to loosen the soil. Set traps carefully. Move traps to a new location if they are not successful in 2 to 3 days. Setting a choker or scissor-jaw trap.