
Prairie dog control on Colorado’s Front RangeColony gone. Pasture back.
Pressurized gas down every active hole. Most of a colony is done in a single treatment.

01 · Prairie dogs
What it is, and what it costs you.
Prairie dogs are the main job here.
A colony can turn a pasture or a horse field into a field of holes in one dry summer, and the burrows keep spreading.
Each active hole is part of a connected system.
There are several entrances, tunnels that run several feet down, and nest chambers.
Filling holes with a shovel does not touch any of that.
Rich treats the system, not the hole.
A probe goes into each active entrance, and pressurized gas pushes through every tunnel connected to it in seconds.
Field signs
How to tell it is prairie dogs.
Volcano mounds
Raised dirt cones or flat rings of soil around each entrance, often a few yards apart.
Clipped grass
Prairie dogs cut the vegetation short around the colony to watch for hawks and coyotes.
Alarm barks
A sharp chirping bark and animals standing upright on the mounds when you walk out.
Spreading edges
New holes at the edge of the colony every spring, especially in dry years.
The PERC® method
Every tunnel, in seconds.
PERC® stands for Pressurized Exhaust Rodent Control.
Instead of a bait on the surface or a trap at one hole, the treatment goes down the burrow and through it.
- 1
Probe in
A probe from the rig goes into each active entrance. Several hoses work at once.
- 2
Pressure on
Pressurized gas, about 2.5 percent carbon monoxide, fills every connected tunnel.
- 3
Purged in seconds
The burrow is purged of air before the rodent can get out another entrance.
The job
How Rich handles it.
Big colonies are where the rig earns its keep. It rides on a trailer behind a UTV, right out onto the colony.
Hose reels on both sides let more than one hole be worked from one spot.
Rules for prairie dogs vary along the Front Range.
The City of Boulder and Boulder County each have their own for some land.
Say where the property is when you call, and the plan starts from what applies there.
We loved working with Richard!
I manage a 40 acre ranch in North Boulder and we noticed an increase in prairie dog activity this year with the drought, we reached out to Rodent Ranger to help us and he did a great job, we haven’t noticed a single prairie dog since.
Richard was communicated, professional, and educational. Would 100% work with him again and refer to others.
Walk the colony
Rich walks the ground with you and counts the active holes. Old, caved-in holes are left out of the count.
Treat each hole
A probe goes into each active entrance and the PERC® rig pushes gas through the system.
The pace is 12 to 20 holes an hour, depending on terrain and weather.
Check for reopeners
Any hole that opens back up gets treated again. Stubborn colonies get finished this way.
Where
Prairie dogs in these towns.
Prairie Dog Control is available up to 125 miles from Milliken: Fort Collins, Loveland, Greeley, Denver and the towns below.
Questions
Common questions.
How many treatments does a colony take?
Most of a colony is done in one.
The Rodent Ranger’s own figure is about a 90 percent reduction from a single treatment.
Holes that reopen get a second pass.
How is a prairie dog job priced?
Per active hole. Rich walks the land and counts first.
The estimate is free, and the number is based on your colony, not a phone guess.
Is it safe for horses and dogs on the property?
Nothing is left on the ground: no bait, no traps, no pellets.
Keep animals and kids away from the hoses while Rich is working.
Other services
Something else digging?
Free estimates · Open 24 hours
Ready when you are. Call the Ranger.
Say what you are seeing and roughly how many holes. The walk-through and estimate for prairie dogs are free.
(970) 301-8724Free estimate
Tell Rich what is digging.
A quick description is plenty: what you are seeing, roughly how many holes, and where.
Rich calls back and sets a time to walk the land.
- Call or text(970) 301-8724
- HoursOpen 24 hours, every dayAs listed on Google
- PricingFree estimate, priced per holeSet once the land is walked
- Based inMilliken, COServing the Front Range, up to 125 miles out
Request a free estimate
Say what is digging and where. Rich calls back to set a time to walk the land. The estimate is free.

