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Gopher Control in Montana: A Complete Guide

If you're finding fresh mounds of soil dotted across your Montana lawn, you've likely got a pocket gopher problem. These solitary rodents are master excavators, and their tunnel systems can undermine landscaping, irrigation lines, and even building foundations. Left unchecked, gophers can turn a manicured yard into a minefield of dirt piles and collapsed tunnels. This guide covers everything you need to know about gopher control in Montana — from identifying the signs and understanding the costs to choosing between DIY methods and hiring a professional. We’ll also dive into regional differences across the state, from the irrigated valleys of the west to the dryland wheat fields of the east.

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Quick answer

gophers are solitary, territorial rodents that damage lawns, gardens, and irrigation. Effective control combines trapping, exclusion, and habitat modification. Professional services in Montana start at $150 for small lots.

Key Takeaways

→Pocket gophers are active year-round, with peak digging in spring and fall.
→A single gopher can create 50–100 mounds per month.
→Trapping is the most effective removal method; poison baits pose risks to pets and wildlife.
→Montana has two main species: northern pocket gopher and plains pocket gopher.
→Professional control costs $150–$700 depending on property size and infestation severity.
→Research: Hiring help is the exception: 13.7% of 518 action-takers in the Illinois Natural History Survey's (INHS) 2012 survey of northeastern Illinois homeowners (reported 2013) used a private removal service, a regional multi-select figure that suggests most jobs never reach a professional.

Comparison of a plugged fan-shaped mound, round mole mound, and open ground squirrel burrow

Inspector mapping fresh and older soil mounds beside irrigation and stressed plants

Who This Is For

This guide is written for Montana homeowners, property managers, and ranchers who are dealing with gopher damage on lawns, pastures, golf courses, or agricultural land. Whether you have a small suburban lot in Billings or a large acreage near Great Falls, the principles here apply — but scale and cost will vary.

54%

NE Illinois homeowners with wildlife problems in prior year (INHS, 2013)

Source: Illinois Natural History Survey: homeowners and wildlife

51.8%

Wildlife-affected NE Illinois households: digging/burrowing (INHS, 2013)

Source: Illinois Natural History Survey: homeowners and wildlife

52%

U.S. homeowners who chose DIY pest removal (Forbes Home survey, 2024)

Source: Forbes Home pest-control sentiment survey

The Problem

Pocket gophers (Thomomys spp.) are widespread across Montana. They are fossorial, meaning they spend most of their lives underground, digging extensive tunnel systems that can cover hundreds of square feet. Each tunnel system typically houses a single gopher, as they are highly territorial. Their mounds are crescent-shaped or fan-shaped, with the burrow plug off to one side — a key difference from molehills. gophers feed on roots, tubers, and vegetation, often pulling entire plants underground from below. This can devastate gardens, kill trees and shrubs, and damage underground sprinkler systems and utility lines. In agricultural settings, they reduce crop yields and create hazards for livestock and machinery.

Warning Signs

•Fan-shaped or crescent-shaped soil mounds, typically 6–12 inches wide, with a plugged hole off-center.
•Fresh mounds appearing daily or every few days, especially after rain or irrigation.
•Wilting or dying plants, shrubs, or trees — roots have been gnawed.
•Visible surface tunnels (raised ridges) in lawns or soft soil.
•Damage to irrigation drip lines or underground cables (gnaw marks).
•Gopher holes (burrow openings) that are plugged with soil — rarely left open.
•Sudden collapse of soil when walking across a lawn, indicating shallow tunnels.

Risks of Waiting

⚠Extensive root damage can kill ornamental trees and shrubs, costing hundreds to replace.
⚠Tunnels can channel water toward foundations, causing soil erosion or structural issues.
⚠Irrigation lines and underground utilities can be chewed, leading to costly repairs.
⚠Gopher populations can grow if not addressed, as new gophers move into vacated tunnels.
⚠Increased risk of livestock or human injury from stepping into hidden burrows.

✅

Do you have a gopher problem?

Have you seen the pest or its droppings indoors?Is the activity getting worse week over week?Have you found damage, bites, or nests?Have DIY products failed to solve it?

Treatment Options

Live Trap (e.g., Macabee, Cinch, GopherHawk)

$10–$30 per trap

Traps are set in active tunnels. They kill instantly (or humanely dispatch in live traps). Requires checking every 24–48 hours.

1–3 weeks to clear a systemBest: Small to moderate infestations; environmentally sensitive areas.

Baiting with Toxic Baits (e.g., strychnine, zinc phosphide)

$20–$50 per treatment

Baits are placed in tunnels using a probe or bait dispenser. Effective but risky for non-target species.

2–4 weeks for full effectBest: Large infestations where trapping is impractical.

Professional Trapping Program

$150–$700 per property

A licensed technician sets multiple traps and returns regularly to check and reset them. Includes warranty.

2–6 weeks depending on severityBest: Property owners wanting results that vary by property and provider without DIY effort.

Exclusion (Underground Fencing)

$200–$500 per 100 linear feet

Installing 24-inch-deep hardware cloth or galvanized wire mesh around gardens or critical areas. Usually combined with trapping.

Permanent with proper installationBest: Protecting gardens, flower beds, and tree roots.

Educational soil cutaway showing a pocket gopher tunnel near clipped roots and a damaged irrigation line

Raised garden bed with bottom hardware cloth and a roomy wire root-protection basket

Understanding Gopher Behavior and Biology

Pocket gophers are solitary fossorial rodents known for their extensive burrowing. Each gopher digs a system of tunnels that can cover up to 2,000 square feet, with separate areas for food storage, nesting, and waste. They are most active in spring and fall when soil moisture is optimal for digging. In Montana, two species dominate: the northern pocket gopher (Thomomys talpoides) and the plains pocket gopher (Thomomys bottae). The northern species is more widespread, inhabiting grasslands, meadows, and agricultural areas across the state. gophers have several unique adaptations for life underground. Their lips close behind their incisors, allowing them to gnaw roots without ingesting soil. They also have fur-lined cheek pouches (pockets) used to carry food — hence the name. These pouches are external, turning inside-out for cleaning. gophers are strictly herbivorous, feeding on roots, bulbs, and occasionally above-ground vegetation pulled into their burrows.

Gopher Control Methods: Trapping vs. Baiting vs. Fumigation

Trapping remains the most effective and environmentally responsible method for gopher control in Montana. The Macabee trap, Cinch trap, and GopherHawk are popular choices. Traps must be set in active tunnels — usually identified by probing the soil to find a depression or by locating the main runway. Setting traps in the main tunnel, not just a lateral, is crucial. Check traps every 24–48 hours and relocate or dispose of the carcass promptly. Baiting with toxicants like strychnine or zinc phosphide is common in large agricultural settings, but it carries risks. Non-target animals, including pets and raptors, can be poisoned by consuming poisoned gophers or bait. In Montana, some baits are restricted and require a pesticide applicator license for purchase. Fumigation using gas cartridges is less common, as gophers can quickly seal off tunnels, rendering the gas ineffective. For most homeowners, trapping — either DIY or professional — is the recommended approach.

Montana's Regional Gopher Variations

Gopher pressure varies across Montana's diverse landscapes. In the western mountainous regions (e.g., Missoula, Kalispell, Bozeman), gophers are common in irrigated lawns and pastures, with activity peaking in the wet spring and early summer. The heavy clay soils in parts of the Bitterroot Valley can make tunneling easier when moist but harder when dry. In central Montana (Great Falls, Lewistown), gophers thrive in the mixed-grass prairies and agricultural fields, often causing significant crop damage. Eastern Montana (Billings, Miles City) has drier conditions, but gophers concentrate in irrigated areas along rivers and around farmsteads. The plains pocket gopher is more common in the east, while the northern pocket gopher dominates the west and central regions.

The research on gophers in U.S. homes

No agency publishes a single national gopher infestation rate, and this page does not invent one. What exists is survey data and published pricing benchmarks, summarized below with their limits stated plainly. In the Illinois Natural History Survey's (INHS) 2012 survey of homeowners in the greater metropolitan area of northeastern Illinois (reported 2013), 28.4% of the 71 respondents who had hired a private removal service rated it good, a small-sample regional result. Among affected households in the Illinois Natural History Survey's (INHS) July to October 2012 survey of homeowners in the greater metropolitan area of northeastern Illinois (n=859, reported 2013), 28.8% listed animals nesting on the property, one of several damage types they could select. Four hundred dollars is the typical cost of a gopher-removal project in the U.S., according to Fixr's January 2025 cost guide, a publisher estimate rather than an observed customer bill; local quotes vary with infestation size. Homeowners who did pay for help were mostly pleased: 49.3% of the 71 private-service users in the Illinois Natural History Survey's (INHS) 2012 survey of northeastern Illinois homeowners (reported 2013) rated the service excellent, though the sample is small and regional. In ConsumerAffairs' February 2024 survey of 2,000 U.S. respondents about home infestations (self-reported, pests and mold combined), 30% said they had tried home remedies, roughly half the 57% who used store-bought products, a broad behavioral figure and not a per-pest statistic. Because every figure above has a stated population and date, you can cite it when comparing providers. What none of them can tell you is what your specific property needs; that still takes an on-site inspection.

Video guide

Pocket Gophers: Four Evidence-First Checks

A short visual guide to distinguishing burrowing-animal signs, mapping fresh activity, checking damage, and protecting selected plants.

Read the video transcript

Start with the surface evidence. Pocket-gopher mounds are often fan or crescent shaped with an off-center plugged opening. Mole mounds are usually rounder and may occur with raised surface ridges, while ground-squirrel burrows are open. Map fresh moist mounds and inspect nearby roots and irrigation before choosing a control area. Confirm utilities before digging or probing. Physical barriers beneath raised beds or around selected root zones can reduce damage when correctly sized and maintained. Control methods, pesticide legality, and humane requirements vary by location and must follow current labels and local rules.

Gopher Control Methods Comparison

Method	Effectiveness	Cost	Best For
Live Trapping (DIY)	High if placed correctly	$10–$30 per trap	Small infestations
Baiting	High, but risky	$20–$50 per treatment	Large areas, agriculture
Professional Trapping	Very high	$150–$700	Any size, results that vary by property and provider
Exclusion Fencing	Moderate (prevents new gophers)	$200–$500 per 100 ft	Gardens, tree rings

What Affects Cost

✓Size of the property (acres vs. small lot).
✓Number of active mounds and tunnels.
✓Accessibility of the infestation (slopes, rocky soil, near structures).
✓Type of treatment (trapping vs. baiting).
✓Number of follow-up visits required.
✓Guarantee or warranty terms.
✓Seasonal demand — spring and fall are busiest, prices may be higher.

📊

What's your biggest challenge with gopher control?

When to Call a Professional

If you have more than 5–10 fresh mounds, if gophers are damaging valuable landscaping or irrigation, if you've tried DIY methods without success, or if you simply don't have the time to monitor traps, call a professional. In Montana, licensed pest control operators can offer inspection terms that vary by provider and service guarantees, like the one at Gopher Control (1-888-546-7983).

DIY vs Professional

DIY trapping can be effective for small, isolated infestations. The key is correct trap placement — you must locate the main tunnel, not just a feeder tunnel. Many homeowners struggle with this, leading to frustration. Baiting is more straightforward but carries risks to pets, children, and wildlife. Professional services bring experience, proper tools, and a guarantee — often saving money in the long run by eliminating the problem faster. For most Montana homeowners, especially those with large lots or persistent issues, hiring a pro is the smarter choice.

Local Context

Montana’s vast geography means gopher control strategies must be adapted to local conditions. In the irrigated valleys of the west, gophers can be a year-round nuisance, with peak activity in April–May and September–October. Homeowners in Bozeman and Missoula often deal with gophers in lawns and golf courses. In agricultural areas around Great Falls and Havre, gophers damage alfalfa and wheat fields, requiring large-scale trapping or baiting programs. Billings, Montana’s largest city, sees gopher issues in both urban and suburban settings, especially near the Yellowstone River corridor. The dry climate of eastern Montana means gophers concentrate near water sources, making them more predictable but also more damaging to irrigation systems. Throughout the state, professional services like Gopher Control (1-888-546-7983) offer inspection terms that vary by provider and tailored treatment plans, ensuring effective removal regardless of location.

Pocket-gopher research · reviewed August 2026

Fresh ground signs matter more than a city-name assumption

A location name cannot confirm an active pocket-gopher tunnel at this property. Record fresh versus weathered soil, mound shape, plug position, surface ridges, open holes, clipped vegetation, plant stress, and irrigation changes before deciding whether the evidence fits pocket gophers, moles, ground squirrels, voles, or another cause.

Identification and activity boundary

UC IPM describes pocket-gopher mounds as commonly crescent or horseshoe shaped with an off-center plugged opening. Mole mounds tend to be rounder, often with surface ridges, while ground-squirrel openings remain open without a mound. Fresh moist soil is stronger evidence of recent activity than an old mound.

UC IPM pocket-gopher guide

Damage and monitoring boundary

Utah State University Extension identifies fresh fan-shaped plugged mounds as the principal field sign and documents potential damage to roots, irrigation, lawns, and infrastructure. Continue monitoring after work because a quiet surface does not prove the burrow system is inactive.

Utah State University Extension pocket-gopher guide

This research layer summarizes public sources; it is not a local activity survey, species determination, utility locate, pesticide recommendation, legal opinion, or substitute for an on-site assessment.

Review the evidence and correction policy

Prevention Tips

✓Maintain a healthy lawn with deep, infrequent watering to discourage tunneling.
✓Remove food sources like dandelions, clover, and other tap-rooted weeds.
✓Install underground fencing (galvanized hardware cloth, 24 inches deep) around gardens.
✓Use gopher-repellent plants like gopher spurge or marigolds (limited effectiveness).
✓Encourage natural predators like owls, hawks, and snakes by installing perches.
✓Flood tunnels occasionally with a hose to collapse them and deter re-entry.
✓Keep grass mowed short to reduce cover for gophers.

💡 Did You Know?

★gophers can close their lips behind their incisors, allowing them to gnaw roots without getting dirt in their mouths.
★Their fur-lined cheek pouches are external and can be turned inside out for cleaning.
★A single gopher can move up to 2 tons of soil to the surface each year.

Frequently Asked Questions

How do I tell a gopher mound from a molehill?

Gopher mounds are fan-shaped or crescent-shaped with a plugged hole off to one side. Mole hills are volcano-shaped with a central hole. Moles also create surface ridges, while gophers rarely do.

How many gophers are typically in a yard?

gophers are solitary and territorial. A typical yard with 5–10 fresh mounds likely has only 1–2 gophers. Each gopher maintains its own tunnel system.

Is it legal to poison gophers in Montana?

Yes, but some baits (like strychnine) require a pesticide applicator license for purchase. Always follow label directions and consider non-target risks. Many professionals prefer trapping.

How long does professional gopher control take?

Most programs take 2–6 weeks, with weekly visits to check traps. A guarantee ensures the problem is resolved.

Can I flood gopher tunnels with a hose?

Flooding may temporarily collapse tunnels, but gophers quickly seal off flooded sections and dig new ones. It's not a long-term solution.

Do gophers hibernate in Montana?

No, gophers are active year-round. They remain active under snow, digging through it and creating mounds on the surface in winter.

What plants do gophers avoid?

gophers generally avoid daffodils, marigolds, and gopher spurge. However, no plant is completely gopher-proof when they are hungry.

How much does gopher control cost in Montana?

Professional trapping programs range from $150 for small lots to $700 for large properties. Many companies offer inspection terms that vary by provider.

How often do wild animals get inside the attic or chimney?

It is a minority of wildlife problems, but not a rare one. In the Illinois Natural History Survey's (INHS) 2012 survey of homeowners in the greater metropolitan area of northeastern Illinois, reported in 2013, 18.7% of 859 wildlife-affected households said animals had occupied their attic, chimney or home, and 15.5% reported building damage. Respondents could list several problems, and the figures are regional. Noises overhead at dusk or dawn are the usual first clue, and an interior occupation is where repellents stop being enough.

What animal keeps knocking over my garbage cans?

Raccoons are the usual suspects, with opossums and dogs close behind, and the problem is common. In the Illinois Natural History Survey's (INHS) 2012 survey of homeowners in the greater metropolitan area of northeastern Illinois, reported in 2013, 22.4% of 859 wildlife-affected households cited scattered garbage as one of their problems. Respondents could list several issues, and the figure is regional, not national. Bungee cords or latching lids and keeping bins in a garage until collection morning solve most cases without any trapping.

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📚 Sources & Further Reading

Content provenance and service transparency

General pocket-gopher identification, activity mapping, damage, and prevention guidance is supported by the cited university IPM and extension references. Generated educational visuals are labeled and do not document a local inspection or provider. Species, activity, underground utilities, legal control options, pesticide labels, provider credentials, pricing, and service terms require direct verification.

Published by Gopher Exterminator · No named licensed-professional review is claimed · Updated 2026-09-11T10:32:45Z

How this content is produced and corrected

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