Animals - Roadkill hotspots

357,076 roadkill records: where deer and elk actually move

HuntTrack maps 357,076 roadkill records across 11 states. Here is what they show about fall movement, habitual crossings, and how to scout them before season.

Why the data matters

A roadkill cluster is a movement record. Hunt the crossings, not the pins.

Every point is an animal that was going somewhere

There is a layer on the HuntTrack map with 357,076 points across 11 states, and every single one is an animal that was going somewhere. Roads kill animals where animals move. A deer does not die on a random stretch of highway; it dies on a route it walks, at a bend it crosses, in a season when it is traveling. Hunters pay thousands for GPS collars to learn the paths of a few dozen animals. State DOT crews, crash reports, and wildlife agencies recorded the paths of hundreds of thousands of animals for free, one carcass at a time. This guide is about how to read that record without fooling yourself.

The fall spike is real, and it is happening right now

Pull the dates off the records and one pattern jumps out in every state with dated data. In Oregon, 84,225 wildlife collision records from the state DOT, and 29 percent of all of them fall in October and November, with November the single biggest month. In Idaho, 15,131 Fish and Game roadkill observations, and a third of them land in October and November. Eighty four percent of the Oregon records are deer, with another 3,619 elk. The biology is not mysterious. October is post rut feeding, hunting pressure pushing animals around, and the start of fall migration in the high country. November is peak rut movement for whitetails and mule deer plus migration in full swing. Animals travel more miles per day in these two months than any other time of year, and they cross more roads doing it. Mid October, which is where the calendar sits right now, is the front edge of the busiest roadkill stretch of the year.

What the records actually are

Honest e-scouting starts with knowing what you are looking at. These are not one dataset; they are eleven different collection systems with different methods. Oregon and Montana send crews out to log carcasses. Iowa, Illinois, Delaware, Massachusetts, and Alabama pull animal collisions out of crash databases. Idaho Fish and Game runs its own roadkill observation program. Washington logs deer and elk through salvage permits, Wyoming through its 511 road report app, and Florida tracks black bear kills specifically. That is why the layer looks denser in some states than others: collection effort is not equal, so do not compare raw counts across state lines. And one more filter matters. HuntTrack shows game species only, the animals you can actually hunt: deer, elk, moose, pronghorn, bear, turkey. The raw feeds include farm animals and pets; those are stripped out before you ever see them.

How to read a cluster

One dead deer on a highway is a tragedy. Five dead deer at the same road bend, across five different years, is a map. Animals are creatures of habit, and the habit shows up as repetition. When you see a tight cluster of points at the same bend or the same drainage crossing, year after year, you are looking at a crossing the local herd uses habitually. The terrain explains why: a drainage that funnels movement down to the road, a saddle that drops animals off a ridge, a fence gap where the wire is already bent. The cluster is the symptom; the funnel is the cause. When you find the funnel on the map, look one ridge past the road for the bedding cover and one flat past it for the feed, because the animals crossing there live on both sides.

Blank country is not empty country

The most important rule for this layer: every point required a person. A carcass crew, a crash report, a phone photo. Highway corridors, town edges, and paved two lanes are covered; roadless public land is nearly blank. The absence of points deep in a wilderness unit does not mean the absence of animals. It means nobody drives there. Read the layer as a record of where animals cross roads, not as a census of where animals live. The backcountry herds never show up here, and they are often the best hunting. Use roadkill to find the crossings near access, then use the sightings, collar tracks, and your boots for the country behind the road.

The collars say the same thing

Here is the check that keeps this honest. HuntTrack also carries 2,869 GPS-collared animals from open Movebank research: 135 Wyoming mule deer, 2,680 Utah elk, deer, pronghorn and bighorn, 20 Wyoming and Colorado pronghorn, and 34 Virginia whitetails. Turn on the GPS-collared animals layer and watch the weekly track lines. The animals funnel through the same saddles and drainages, sliding elevation as feed cures and cold pushes in. The migration corridors layer draws the published seasonal routes on top. And the roadkill layer marks where those same funnels hit pavement. Three independent sources, same answer. A corridor is a corridor whether it crosses a highway or your unit boundary.

Roadkill records on HuntTrack, by state

The full layer as it stands today, with the source behind each extract. Counts change as states publish new data.

StateRecordsSource
Oregon84,225ODOT wildlife collision reports
Iowa83,671Iowa DOT crash data, 10 year history
Montana61,158MDT animal carcass reports
Delaware32,593Delaware public crash data
Alabama20,842Alabama eCrash animal collisions
Massachusetts20,824MassDOT crash records
Illinois15,246Illinois DOT crash data
Idaho15,131Idaho Fish and Game observations
Washington10,457WDFW salvage permits, deer and elk
Wyoming6,813WYDOT roadkill reports
Florida6,116FWC black bear roadkill locations

Scout the crossings before season

Here is the one hour version. Open your unit and stack Roadkill over Public land, Hunt units, and Migration corridors. Zoom to the roads that cut through or border public ground. Look for clusters at the same bend across multiple years, then check the terrain: is there a drainage, a saddle, or a bench funneling animals to that exact spot? Flip on Timber harvest and Burn scars, because fresh regrowth near a crossing is feed, and feed plus a funnel is a morning stand. Then flip the calendar in your head to October and November. The October elk guide on this site covers the post rut feeding shift in detail; the short version is that pressured elk feed at dawn and dusk and bed in dark timber midday, and the crossings between those two are where your roadkill clusters live. Mark three funnels on public ground plus one backup, and walk the crossing in daylight before season to find the actual trails. The pins got you close. Your boots finish the job.

Sources & further reading

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