Colorado has no purple paint law, and landowners here carry zero legal obligation to fence or post their land before a hunting trespass charge applies. The state’s trespass law surprises hunters used to paint-marked boundaries elsewhere: the state has no paint statute at all, and general criminal trespass hinges on notice or fencing rather than any color code.
Close to 60% of Colorado's land is privately owned, with the remainder split across national forest, BLM, and state-managed ground. HuntWise's Land Ownership layer draws that line clearly, which matters most in the state's ranch and foothill country, where private and public parcels often sit within sight of each other without a single fence marking the difference.
For hunting specifically, the rule is even stricter: permission is required whether the land is posted, fenced, or wide open, which makes it worth learning to find property lines before you rely on appearance alone. Keep reading for the exact steps to confirm where you stand before you hunt.
How to Find Property Lines in Colorado
Colorado puts the entire burden of knowing a boundary on the hunter, since landowners aren't required to mark their property in any way before a trespass charge can stick. These five steps help you carry that burden properly.
- Open HuntWise and turn on the Land Ownership and Property Lines Information layers. These place parcel boundaries, landowner names, and contact details on satellite imagery and work offline, essential across Colorado's high country where service disappears fast.
- Cross-check against your county assessor's GIS parcel viewer. Most Colorado counties publish free, searchable tools showing exact parcel shapes, owner names, and legal descriptions.
- Pull up CPW's Where to Hunt tools before you commit to a spot. HuntWise's mapping tools let you compare that access data against your own notes so you know exactly where national forest or BLM ground gives way to a private ranch.
- Don't wait for a sign, fence, or paint mark to tell you where private land begins. Colorado law doesn't require any of the three, so the absence of all three means nothing about who owns the ground you're standing on.
- Get permission before you hunt any private parcel, regardless of appearance. State law makes hunting on private land without permission illegal outright, with no exception for land that looks open or unmanaged.
For CPW's public land access programs and where private-land hunting opportunities fit in, see CPW's Where to Hunt page.
Why Colorado Hunters Must Identify Property Lines
Colorado's mix of national forest, BLM ground, and working ranches means ownership can change several times over the course of a single hunt, often with no visual cue marking the shift. Because Colorado law requires permission regardless of posting or fencing, a hunter can't lean on the absence of a sign to justify crossing a line, the way that logic might work in states with a posting requirement.
That gap matters most in foothill and prairie country, where a ranch boundary can run for miles across open rangeland that looks identical on either side. A property-lines app turns that invisible line into something visible on the same map you're already using to plan a hunt, which counts for more here than in states where a fence or a painted post would otherwise tell you.
What Are the Types of Hunting Land in Colorado?
Colorado's hunting land runs from vast national forest and BLM ground to working ranches, with several access programs opening additional private acreage to hunters willing to follow program-specific rules. The table below covers what's available and what each requires.
Types of Hunting Land in Colorado | |||
| Type | What It Is & What to Hunt Here | Public or Private | Permission Needed |
| National Forest, BLM & State Wildlife Areas | The bulk of Colorado's public hunting ground, covering big game, upland birds, and waterfowl across the state's mountains and plains. | Public | No, but GMU-specific rules and some reservations apply |
| Walk-In Access (WIA) & Ranching for Wildlife (RFW) Land | Private land voluntarily enrolled through CPW programs, offering free or license-draw access to residents and, in WIA's case, all hunters. | Private, publicly accessible | No, but program-specific rules and boundaries apply |
| Unenrolled Private Ranch & Farmland | Working cattle ranches and farmland outside any CPW access program, much of it unfenced. | Private | Yes, always, regardless of posting |
| Leased Hunting Land | Private ranchland leased to individual hunters or outfitters, common practice in Colorado's big game country. Anyone weighing a lease should work through a hunter's checklist first. | Private | Yes, lease agreement required |
How Using a Hunting App Helps You Plan Where You Can Legally Hunt
Colorado's game management units carry different access rules depending on the property, and some hunts on state trust or park land even require an advance reservation booked days or weeks ahead. Confirming those property-specific details before you build a season around a spot saves a wasted trip to a gate you can't legally enter that day.
HuntWise's hunting app features to locate property lines also catch something a paper brochure won't: whether the specific piece of ground you're eyeing near a national forest boundary is actually part of that public unit or a private inholding a few hundred yards inside it.
Colorado's mountain terrain routinely swallows cell signal in the same drainages and basins hunters most want to scout, so keeping your maps and ownership data stored on the device itself, rather than depending on a live connection, keeps a hunt plan intact once the bars disappear.
How to Ask Permission to Hunt on Private Land
Colorado ranchers tend to respond better to a specific, respectful request than a vague one, especially since state law already puts the legal burden on the hunter to ask first. Identify the parcel through HuntWise or your county's GIS records, then ask clearly for what you want: which days, which weapon, and how many people you’ll be hunting with.
Requesting permission well ahead of the season gives a rancher time to think it through, rather than fielding a request during calving or haying when there's little time to consider it.
A quick text or email confirming the agreed dates and terms protects both sides if a question ever comes up later about who was cleared to be on the property.
See how HuntWise property lines work in the video below!
Know Your Boundaries Before You Hunt in Colorado
Colorado doesn't give hunters a paint-based shortcut or even a posting requirement to lean on, which puts the full weight of knowing a boundary on the person doing the hunting. A county parcel record, a current HuntWise layer, or direct landowner permission all carry more legal weight here than assuming open-looking land is actually open.
Confirming a boundary before you cross it takes only a few minutes and protects a season's worth of access. Start with HuntWise's Land Ownership layer, cross-check it against your county's GIS records, and get permission before every private-land hunt, no exceptions.
Download HuntWise and map out your hunt with Pro and Elite features (free) during your first week in the app!
Frequently Asked Questions (FAQs)
Q: What is the best app to find property lines for hunting in Colorado?
A: HuntWise puts county parcel data, landowner names, and acreage right on the satellite map you're already scouting with. It also works offline, critical in Colorado's mountain terrain where cell coverage can vanish deep in a drainage.
Q: How accurate are GPS hunting apps for property lines in Colorado?
A: GPS mapping is generally accurate to within a few feet, though county parcel data can occasionally lag behind a recent land sale. In Colorado's rangeland and foothill country, confirming who currently holds the land matters more than chasing pinpoint precision.
Q: Is there a free way to look up property boundaries in Colorado?
A: Most Colorado county assessor offices post searchable parcel data online at no cost, showing a tract's boundary, acreage, and listed owner. For a certified legal description or recorded plat, that documentation is held at the county clerk and recorder's office instead.
Q: Does Colorado have a purple paint law for marking property boundaries?
A: No. Colorado's trespass statutes don't reference paint of any color, and landowners aren't required to post signs or install fencing for a hunting trespass violation to apply. Permission from the landowner is the only thing that matters, regardless of how the property looks.
Q: What are the penalties for trespassing while hunting in Colorado?
A: Hunting on private land without permission is a misdemeanor carrying a $200 fine and 20 license suspension points, which alone can trigger a suspension hearing before the Parks and Wildlife Commission. Repeat or aggravated trespass violations have resulted in hunting and fishing suspensions of up to five years.
Q: How do I find public hunting land boundaries in Colorado?
A: CPW's Where to Hunt resources break down national forest, BLM, state wildlife area, and state trust land boundaries by agency, since each manages its own maps and access rules. HuntWise folds a version of that same public-land data into the app, so you're checking one map instead of several agency websites.
Q: Can HuntWise show me landowner information in Colorado?
A: Landowner names come up automatically once you tap a parcel in the Land Ownership layer, right alongside its acreage and boundary lines. Since Colorado law puts the burden of getting permission entirely on the hunter, the Property Lines Information layer's contact details are worth pulling up before you ever drive out to a ranch gate.
Q: How do I use county records to verify property lines in Colorado?
A: Colorado county assessor offices maintain online parcel records, generally free to search, showing a tract's boundary, acreage, and current owner. Anything requiring legal weight, like a recorded plat or deed, is held at the county clerk and recorder's office.
