Trapping is the most reliable way to remove a pocket gopher from your yard, garden, or field. Unlike poison baits or fumigation, a properly set trap gives you immediate confirmation that the animal is gone and poses little risk to pets or children when placed underground. The process itself is straightforward once you understand how a gopher’s tunnel system is laid out, but the details matter: where you dig in, which trap you use, and how you position it inside the tunnel all affect whether you catch the gopher in hours or waste days resetting empty traps.
Understanding What Is Happening Underground
Before you set a single trap, it helps to know what a pocket gopher has built beneath your property. These are not simple holes. Research on seven species of pocket gophers found that every burrow system consisted of a main tunnel with multiple side branches, along with dedicated chambers for nesting, food storage, and waste.1The Southwestern Naturalist. Comparative Analysis of Burrow Systems of Seven Species of Pocket Gophers (Rodentia: Geomyidae) The main tunnel is the highway the gopher uses repeatedly throughout the day to forage and maintain its territory. The side branches typically lead to feeding areas near the surface or to dead-end chambers. When you see fan-shaped mounds of dirt on the surface, each one marks the exit point of a lateral tunnel the gopher used to push excavated soil aboveground.
Tunnel depth and diameter scale with the gopher’s body size. Smaller species tend to dig shallower, narrower tunnels, while larger species go deeper and wider. In most residential settings across the western United States, main tunnels run roughly six to twelve inches below the surface, though they can be deeper in sandy or loose soils. The practical takeaway is that you are not digging far to reach the main tunnel, but you do need to find the main tunnel rather than a shallow lateral branch. Traps placed in dead-end lateral tunnels rarely catch anything because the gopher has little reason to travel through them again.
Finding the Main Tunnel
The fan-shaped mounds are your starting point. Look at a cluster of fresh mounds and notice that each mound has a slight crescent or horseshoe shape with a plug of soil on one side. That plug marks where the lateral tunnel meets the surface. The main tunnel does not connect directly to the mound; instead, a short lateral branch angles down from the plug to the deeper main tunnel.
To locate the main tunnel, use a probe. A simple metal rod, a long screwdriver, or a commercial gopher probe all work. Stand about eight to twelve inches away from the plugged side of a fresh mound and push the probe into the ground at a slight angle toward where you think the main run lies. When the probe suddenly drops an inch or two with little resistance, you have hit a void, which is the tunnel. In most yards, the main tunnel connects multiple mounds in a rough line. If you probe between two fresh mounds that are relatively close together, you will often hit the main run that links them.
Once you feel the probe drop, mark the spot. You will dig here to place your trap.
Choosing the Right Trap
Three trap styles dominate the pocket gopher market: pinch traps (the Macabee being the most widely sold), box traps, and choker-style traps like the Cinch and the DK-1. Each kills the gopher quickly when it contacts the trigger mechanism, but they differ in how often they actually catch the animal versus simply being tripped or plugged with soil.
A field study comparing Macabee, Cinch, and DK-1 traps in alfalfa fields found that Macabee traps attracted more gopher activity than the other two types and were more effective overall in terms of animals caught per visit. They were also the most time-efficient: fewer minutes spent in the field per gopher caught.2Utah State University Extension. Comparison of Three Traps Used for Pocket Gopher Management (Thomomys Bottae) in Alfalfa Fields However, the same study noted that Macabee traps were also tripped or plugged by gophers more often than the alternatives, meaning the gopher detected the trap and pushed soil into it or set it off without being caught.
A separate California study comparing the Gophinator trap (a larger, sturdier pinch-style trap) to the standard Macabee found that the Gophinator achieved a higher capture rate per visit during spring trapping, averaging around 68% compared to 50% for the Macabee.3Crop Protection. The influence of trap type and cover status on capture rates of pocket gophers in California The Gophinator’s heavier construction makes it harder for the gopher to push past or plug the trap without triggering it.
For most homeowners, a standard Macabee-style pinch trap is inexpensive, widely available, and effective enough that a pair of them will solve a single-gopher problem within a few days. If you are dealing with a persistent population or trapping across a larger area, the Gophinator’s higher per-visit success rate can save real time. Box traps are bulkier and require a larger excavation to place, but some people prefer them because the gopher is enclosed when caught, making disposal easier.
Setting and Placing the Trap Step by Step
With the main tunnel located and your traps in hand, the actual setup goes like this:
- Dig down to the tunnel: Use a hand trowel or small shovel to excavate at the spot where your probe found the void. Open a hole large enough to see the tunnel running in both directions. Keep the removed soil nearby on a piece of cardboard or in a bucket so you can use it to cover the hole later.
- Clear the tunnel: Reach into the tunnel in both directions and pull out any loose soil or roots. The trap needs to slide smoothly into the tunnel without obstruction. If the tunnel is packed with fresh soil near your dig point, scoop it out until you can see or feel open tunnel extending at least a foot in each direction.
- Set two traps facing opposite directions: You do not know which direction the gopher will approach from, so place one trap facing each way. For a pinch trap like the Macabee, compress the spring, set the trigger, and slide the trap into the tunnel so the trigger end faces the open passage. The jaws should sit flush with the tunnel floor. For box traps, the open end faces the tunnel so the gopher walks in.
- Tether each trap: Attach a wire or string from each trap to a stake driven into the ground at the surface. This keeps the gopher from dragging the trap deeper into the tunnel if it is caught but not killed instantly, and it helps you retrieve the trap when checking.
- Cover the hole: Block the opening with a clod of dirt, a piece of cardboard, or a flat stone, then cover with loose soil. You want to block light from entering the tunnel. Gophers are sensitive to drafts and light infiltrating their tunnels, and an open hole prompts them to plug the breach with soil, which can bury your traps. Some trappers leave a very small gap to check for activity, but fully covering the hole usually works better.
After covering the hole, press the soil down lightly and mark the spot with a flag or stick so you can find it again. Many people set traps in the evening and check them the following morning, since gophers are active at various times throughout the day and night.
You Do Not Need to Wear Gloves
One of the most persistent pieces of advice in gopher trapping is to wear rubber gloves so your human scent does not spook the animal. It sounds reasonable, but a controlled study specifically testing whether glove use affected trapping outcomes found that it made no difference. Glove use had no impact on either the capture rate or how often gophers visited the trap.4Crop Protection. Refinement of a trapping method increases its utility for pocket gopher management Pocket gophers live in sealed underground tunnels surrounded by soil, roots, insects, and decaying plant material. Their world is already saturated with odors. The trace amount of scent left by bare hands on a metal trap does not register as a meaningful threat.
If gloves make you more comfortable handling traps and soil, go ahead and wear them. Just know that skipping them is not sabotaging your trapping effort. The factors that actually determine success are trap placement within the main tunnel, light exclusion when you cover the hole, and choosing a trap sturdy enough to resist being plugged.
Checking Traps and Knowing When You Are Done
Check your traps at least once a day, ideally twice. A gopher caught in a trap that sits for more than 24 hours can attract ants and other insects, and in warm weather, decomposition begins quickly. If the trap has been sprung but is empty, the gopher likely pushed soil into it or bumped the trigger without entering. Reset the trap, clear any packed soil from the tunnel, and re-cover the hole.
If the trap has not been disturbed at all after two full days, you may have placed it in a lateral branch rather than the main tunnel. Pull the traps, probe again for the main run, and try a new location. Fresh mounds appearing nearby while your traps sit untouched are a strong signal that you have missed the active main tunnel.
Pocket gophers are solitary and territorial. In most residential situations, the damage you see in a given area is caused by a single animal. Once you catch one gopher and no new mounds appear for a week or two, that burrow system is empty. If fresh mounds reappear weeks or months later, a new gopher has moved into the vacant territory. This is normal. Unoccupied tunnel systems are essentially open real estate for neighboring gophers looking to expand.
Why Soil Type Affects Your Situation
If you have noticed that gophers seem to plague certain neighborhoods or fields while leaving nearby areas alone, soil composition is a major reason. Research on Thomomys pocket gophers showed that their distribution is strongly tied to soil properties including bulk density, clay content, and depth to bedrock.5PLOS ONE. Morphological Adaptations for Digging and Climate-Impacted Soil Properties Define Pocket Gopher (Thomomys spp.) Distributions Different subgroups of gophers even prefer different soil types: some favor loose, low-clay soils while others thrive in denser, more clay-rich ground.
For trapping, this matters in two practical ways. First, if your property has the kind of soil gophers prefer, you are more likely to face recurring invasions even after successfully trapping the current resident. Planning for ongoing monitoring and periodic re-trapping is realistic, not pessimistic. Second, soil texture affects how easy it is to probe for tunnels and dig down to them. In loose, sandy soils, tunnels can be harder to detect with a probe because the surrounding soil gives way almost as easily as the tunnel void. In heavy clay, the contrast between packed soil and open tunnel is more obvious, but digging the access hole is harder work. Adjusting your expectations based on your soil saves frustration.
Common Mistakes That Lead to Empty Traps
Most failed trapping attempts come down to a few repeatable errors rather than gophers being unusually clever:
- Trapping at old mounds: Gophers constantly extend their tunnel systems and abandon older sections. If a mound is dry, weathered, and flat on top, the tunnel beneath it may no longer be in use. Always target the freshest mounds, which look dark, moist, and loosely piled.
- Leaving the hole open: Even a small gap letting light or air into the tunnel alerts the gopher that something is wrong. Its instinct is to plug the breach, which means pushing soil right into your trap. Cover the access hole thoroughly.
- Setting only one trap: A single trap facing one direction gives you a coin-flip chance of the gopher approaching from the right side. Two traps facing opposite directions in the same tunnel doubles your odds on each visit.
- Not clearing the tunnel before placement: Loose soil between the trap and the open tunnel acts as a buffer the gopher pushes ahead of itself, tripping or burying the trap before the animal contacts it. A clean section of tunnel on either side of the trap gives the gopher a clear path onto the trigger.
- Giving up too soon: If your first placement does not produce a catch within 48 hours, the problem is almost always location, not technique. Move to a different spot along the main tunnel and try again. Gophers are active every day and will encounter a well-placed trap quickly.
Alternatives Worth Knowing About
Trapping is not the only option, and depending on your situation it may not be the most practical one. Toxic baits containing strychnine or zinc phosphide are available in many states and can be effective when placed directly in the tunnel, but they carry real risks to pets, children, and predators like owls and hawks that might eat a poisoned gopher. Fumigation with aluminum phosphide is used commercially but is restricted to licensed applicators in most states because the gas is lethal to humans in enclosed spaces.
Flooding tunnels with a garden hose occasionally drives a gopher to the surface where it can be caught, but the success rate is low because burrow systems have multiple branches and the water simply drains away through the soil. Vibrating stakes and ultrasonic repellers are marketed aggressively but have no credible research supporting their effectiveness. Gophers regularly tunnel right past them.
For people who want a hands-off approach, barn owls are genuine gopher predators, and installing owl boxes on a property with chronic gopher problems can reduce the population over time. This is a long-term strategy, though, not a solution for the gopher currently destroying your vegetable garden.
Trapping in Gardens and Around Tree Roots
Gophers cause the most visible damage in two settings: vegetable gardens, where they pull plants down from below, and around trees, where they gnaw bark off roots and can eventually girdle and kill the tree. In both cases, the trapping technique is the same as described above, but a few details shift.
In garden beds, the tunnels tend to be shallower because the loose, amended soil is easy to excavate and full of roots the gopher is feeding on. Probing may reveal tunnels only four to six inches deep. Set your traps at this depth and be especially careful about covering the access hole, because garden soil is often loose enough that it crumbles into the tunnel easily.
Around established trees, the gopher may be working at deeper levels to access major root systems. If fresh mounds ring a tree, probe in an arc around it to find the main run. The tunnel often follows a path that roughly circles the tree, branching inward to reach roots. You may need to dig a slightly larger hole to work at the greater depth.
For long-term tree protection, some orchardists install wire baskets made of galvanized hardware cloth around the root ball at planting time. This does not help with an existing gopher problem, but it prevents future damage to newly planted trees. The mesh needs to be small enough that a gopher cannot squeeze through, typically half-inch openings or smaller, and it should extend at least a foot above the soil line since gophers occasionally surface to gnaw bark at the base of a trunk.