The short version
Around Longmont, the digger is usually the northern pocket gopher. Trap the main tunnel near a fresh mound. Repellents rarely work.
- Usually one or two gophers.
- Fan-shaped mounds mean gophers.
- Wire protects beds and trees.
- Repellents rarely work.
Homeowners and gardeners in Longmont with mounds or tunnels in the yard.
What to look for
Gophers eat roots, bulbs and plants from below. They push up fan-shaped mounds as they dig. One gopher can ruin a garden bed in a few days.
- 1Fan-shaped dirt mounds.
- 2A plugged hole off to one side of the mound.
- 3Plants wilting or pulled underground.
- 4Chewed irrigation lines.
- 5Soft, sinking soil.
- 6Fresh mounds after rain or watering.
Why it’s worth acting soon
- Roots, bulbs and young trees get eaten.
- Irrigation lines get chewed.
- Mounds dull mower blades.
- More gophers move into empty tunnels.
Treatment options and typical costs
Activity Mapping and Tunnel Probing
$75–$200
This step makes or breaks the job. Traps in dead tunnels catch nothing. Careful probing is the least glamorous part and the most important.
- Time
- 45–90 minutes
- Best for
- Every job; separates fresh activity from old, abandoned mounds
Trapping in Active Tunnels
$150–$450 per visit series
Trapping is the most widely used method for gophers on Longmont residential lots because it uses no toxicant and confirms the catch. The pro opens the runway, sets paired traps, and reseals it.
- Time
- 2–5 visits over 1–2 weeks
- Best for
- Small yards, gardens, homes with pets, and anyone avoiding poison
Labeled Burrow Baiting
$150–$400 per treatment
Which gopher baits homeowners can buy varies by state and county. A provider working in Longmont should know the current restrictions without being asked.
- Time
- 30–60 minutes per visit, plus follow-up
- Best for
- Larger properties and heavy infestations where trapping alone is too slow
Burrow Fumigation
$200–$600 per treatment
Because fumigation is invisible, follow-up matters even more than with trapping. A pro should come back to check for fresh mounds.
- Time
- 1–2 hours, with re-entry restrictions
- Best for
- Heavy activity on large lots, away from structures, where legal
Prices are typical published ranges. Ask what’s included before you compare quotes.
Hardware cloth under raised beds keeps gophers away from the plants you care about.Which gophers live around Longmont.
They live alone, so a yard usually has one or two. Voles may also be at work; they leave surface runways. Pocket gophers are stocky, with cheek pouches and long claws.
When they dig.
Frozen ground slows surface work in winter. Summer heat and dry soil push activity deeper. Digging peaks in spring and fall, when soil is moist.
Pocket gophers are stocky, with cheek pouches and long front claws. Each one lives alone.Finding the main tunnel.
The plugged hole is on the open side of the fan. Probe a foot or two back to find the main tunnel. That's where traps belong. Yards from Longmont out to Boulder and Loveland share the same pattern. Find a fresh, fan-shaped mound.
A year of digging in Longmont.
- Winter: lows near 16°F in Longmont. Surface work slows. - Spring: peak digging as soil warms and stays moist. - Summer: highs near 88°F in Longmont push activity deeper. - Fall: a second peak before winter.
Gopher, mole or vole?
- Chipmunk: neat holes, no dirt pile. - Gopher: fan-shaped mounds, plugged hole to one side. - Mole: round mounds and raised ridges. - Vole: surface runways and chewed plant stems.
Protecting gardens and trees.
- Drip lines: check for chew marks each spring. - Raised beds: line the bottom with hardware cloth. - Trees: plant in wire root baskets. - Bulbs: use small wire cages.
What works, and what doesn’t.
- Rarely: plants said to repel gophers. - Works: traps in the main tunnel. - Sometimes: labeled baits placed deep in tunnels. - Rarely: sonic stakes, gum, castor oil or flooding.
How gopher traps are set.
- Check: look again within a day. - Find: probe near a fresh mound for the main tunnel. - Open: dig down to expose both directions. - Set: place a trap facing each way. - Cover: block light with a board or sod.
Lawn care that discourages diggers.
Keep weedy edges and tall grass mowed. Pull mulch back from tree trunks. Healthy turf recovers from digging faster. Water deeply but less often.
Fixing the yard afterward.
Rake mounds flat and fill sunken tunnels. Water to settle the soil. Reseed or patch bare spots in spring or fall. Wait until the digging stops.
Irrigation lines and sprinklers.
Check for wet spots or weak spray each spring. Bury lines a little deeper where you can. Fix leaks fast, since damp soil draws more digging. Gophers chew drip lines and sprinkler tubing.
Natural help.
Barn owl boxes can help on bigger properties. Bait can harm pets and wildlife if misused. Traps avoid that risk. Owls, hawks, snakes and foxes all hunt gophers and voles.
Myths about yard diggers.
- Many mounds, many animals: often it’s one. - Gum or laxatives: no evidence they work. - Car exhaust or flooding: unsafe and unreliable. - Sonic stakes: animals get used to them. - Repellent plants: little proof of results.
Signs the problem is over.
- New mounds later? Another one moved in. - No fresh mounds for two weeks. - Plants stop wilting or disappearing. - Flattened mounds stay flat.
Underground wire baskets.
Leave a few inches of wire above the soil. Baskets last several years, long enough for roots to get established. Plant new trees, roses and bulbs in baskets of galvanized wire.
Raised beds that stay safe.
- Soil: fill after the wire is in place. - Base: staple hardware cloth across the bottom. - Wire: half-inch mesh, not chicken wire. - Edges: run the wire up the inside walls.
When a whole street has them.
Clearing your yard alone may only last a season. Talking with neighbors and treating at the same time works better. Diggers move in from vacant lots, fields and neighbors' yards.
Pets, kids and digging.
Choose traps over bait if a dog likes to dig. Fill old mounds so no one twists an ankle. Keep kids and pets away from traps and bait.
Gopher-proofing new landscaping.
Plant shrubs and trees in wire baskets. Raised beds with mesh bottoms protect vegetables. It costs more up front but saves replanting. Lay wire mesh under new sod before it goes down.
Questions to ask before you sign.
- Is it safe around pets? - Is it a gopher, mole or vole? - Which method will you use? - How often will you check? - What if another one moves in?
How to size up the yard damage.
Across Longmont, tunnel systems typically run 6 to 12 inches below the surface, with deeper nesting and food-storage chambers. Across Longmont, because each gopher is solitary, a yard with several fresh mounds usually means several animals, each with its own network. Across Longmont, count the active mounds during your walk-through — that number, not a national average, is what should drive a treatment plan. Across Longmont, state wildlife agencies put a single pocket gopher at roughly a ton of soil moved per year, and mounds are the first thing most people notice.
Gopher mounds vs. other lawn damage in Longmont.
Across Longmont, the mounds are the giveaway — moles leave raised ridges without a clear entrance hole, and voles leave shallow surface runways through the grass. Around Longmont, CO, 14 inches of rain a year softens the soil and makes new mounds more visible after a wet spell. Across Longmont, reading the shape of the mound is the first step in choosing the right control method. Across Longmont, gopher activity shows up as fan-shaped mounds of fresh soil with a plugged entrance off to one side.
What a gopher control job should cost in Longmont.
Across Longmont, a small yard with one or two active tunnels is a small job; a large lot with tunneling across a wide area costs more because it takes more traps and more return visits. Across Longmont, ask for a written quote that spells out the number of visits, the method, and what the follow-up covers, rather than a single flat number. Across Longmont, gopher control is priced by how many active tunnels there are and how much ground the animal is using, not by how many animals you can count.
Why gopher problems come back after removal.
Across Longmont, that is why removal alone rarely holds: if the food and the tunnel access are still there, a new gopher will simply re-colonize the same tunnels. Across Longmont, the long-term fix pairs removal with habitat changes, like limiting the grubs and earthworms or irrigated plantings gophers feed on and keeping nearby overgrown areas trimmed, so your yard stops being the easiest target on the block. Across Longmont, gophers are solitary, but the space they leave is quickly filled by the next animal that moves in from neighboring yards or open ground.
What affects the price
- Trapping versus baiting versus fumigation.
- Pets or children requiring toxicant-free methods.
- Soil type, since dry or sandy ground limits fumigants.
- Number of fresh mounds and active tunnel systems.
- Season, with spring and fall needing more follow-up.
- Whether wire baskets or buried mesh are requested.
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What's digging in your yard?
When to call for help
Call if new mounds keep appearing after a week of trapping. for big lots next to fields. A pro can find the main tunnels fast.
What you can do yourself
Find the right tunnel and follow the trap instructions. Skip sonic stakes and home remedies. Once you know what it is, trapping is DIY-friendly.
Gophers in Longmont
Longmont only gets about 14 inches of rain a year, so watered lawns and gardens draw most of the digging. Winter lows near 16°F freeze the topsoil around Longmont, but tunnels below keep going. In Longmont's neighborhoods, lawns and vegetable gardens next to open lots are hot spots.
Gopher tips from the experts
Fresh mounds tell the story
Around Longmont, Colorado, fresh, dark soil means a gopher is active now. Look at the mound shape, the plugged hole and any wilting plants before deciding what you have.
Gopher, mole or ground squirrel?
Gopher mounds are crescent or horseshoe shaped, with a plugged hole off to one side. Mole mounds are rounder, often with raised ridges nearby. Ground squirrel holes stay open, with no mound.
UC IPM: pocket gophersWhat they damage
Gophers chew roots, irrigation lines and sometimes buried cables. Fresh, moist soil means they’re active now. Keep watching after treatment, since a quiet yard doesn’t always mean they’re gone.
Utah State University Extension: pocket gophersSoil ropes after the snow melts
In snowy parts of Colorado, gophers tunnel through the snow and pack the tunnels with soil. When it melts, those soil ropes are left on the lawn. They show where gophers were busy over winter.
Based on guidance from university extension services.
How we check our sourcesLocal research
Gophers in Longmont, CO: what the public record shows
Before you compare quotes, it helps to know which gophers actually live in Colorado, when they are busiest around Longmont, and what the state figures look like. Everything below links to the agency or university page it came from.
Gopher species recorded in Colorado
- Northern pocket gopher (Thomomys talpoides) — Smallest and most widespread western species; all of eastern Washington and Oregon east of the Cascades.
- Yellow-faced pocket gopher (Pappogeomys castanops) — Southern High Plains.
When gophers are busiest around Longmont
Spring and fall. Plains states: mounds visible after snowmelt and again in fall.
Based on Longmont’s semi-arid climate profile.
Sources: Pocket Gophers; UC IPM (University of California Agriculture and Natural Resources); Living with wildlife: Pocket gophers. Figures are quoted as the source prints them. How we check our sources
Simple ways to keep gophers away
- Line raised beds with wire mesh.
- Plant trees in wire root baskets.
- Check for fresh mounds weekly.
- Trap new gophers early.
- Keep weedy field edges mowed.
- Skip sonic stakes and repellents.
Mark fresh mounds on a sketch. New ones show where the gopher is working now.Did you know?
One gopher can move a ton of soil in a year
Gopher teeth never stop growing
Questions people ask
How long does it take to get rid of gophers?
Usually a week or two of trapping.
Can I trap gophers myself?
Yes. Set traps in the main tunnel near a fresh mound.
What should a gopher company tell me first?
Method, placement, check schedule and what's included.
What time of year are gophers most active?
Spring and fall, when the soil is moist. They stay active all year.
Do gophers carry diseases or bite?
They rarely bite unless handled. They're not a major disease risk to people.
When is digging worst in Longmont?
Frozen winter ground slows things down.
Are there gophers in Longmont?
Yes. Around Longmont, it's usually the northern pocket gopher.
Nearby cities
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Sources (5)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Gopher Exterminator · Updated September 11, 2026 · How we write these guides