Blog · October 14, 2026 · Montana
Using the Blaine County Flood Zone Map
The zone on FEMA's map affects insurance, building and resale near Upper Missouri River Breaks National Monument.
Main page: Blaine County, MT GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before you buy or build near Black Coulee National Wildlife Refuge, check the Blaine County flood zone map: FEMA's zone label affects insurance, building rules and resale. In this Blaine County guide: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the Montana Cadastral.
Getting started with the Blaine County flood zone map
If you'd rather pan and zoom, open the National Flood Hazard Layer viewer, where zone shading sits over a photo base, for land near Black Coulee National Wildlife Refuge included. Vacant ground around Upper Missouri River Breaks National Monument is still easy to locate: pan from the closest town and click inside the land.
The free map to start with
With a lot near Hartland Colony, the official parcel map for this area is the Montana Cadastral, and it opens in a browser with no account. Without an address in hand, pan along the nearest road and select the outline, for land near Milk River included. On ground around Fort Belknap Agency, the parcel card usually lists the owner of record, assessed acreage, a parcel ID and sometimes recent sales.
Zones on the Blaine County flood zone map
If the land is near Lodge Pole, zones beginning with A or V mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. On ground around Fort Belknap Agency, a shaded X area is moderate risk, roughly the 100- to 500-year range; plain X, or C on older maps, is minimal risk.
Places you'll see on the map
Chinook holds the county offices, where most land records are kept. You'll also find Harlem, Fort Belknap Agency, Hartland Colony, and Hays, each with its own cluster of lots. About 6,899 people live in Blaine County (Census estimate, 2023) across roughly 4,228 square miles. Blaine County was formed in 1912, and some chains of title near Chinook are long. Features like Milk River and Black Coulee National Wildlife Refuge are easy to spot when you zoom out.
Beyond the mapped zones
Small streams around Fort Belknap Agency may not have detailed mapping, so walk the land after rain. Wet ground around Hartland Colony is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
Legal descriptions in Montana
Montana uses the Public Land Survey System, so rural legal descriptions near Harlem cite section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though sections near Upper Missouri River Breaks National Monument can be irregular. Copy the legal description from the record for the parcel near Fort Belknap Agency when you talk to a surveyor.
Offices that can help
For assessment questions about property around Upper Missouri River Breaks National Monument belong with the Montana Department of Revenue, the office behind the parcel record. Zoning, permits and septic questions near Chinook are for the local planning and health departments, town or county, depending on location.
Deeds, plats and who keeps them
When the details count, request the recorded deed from the County Clerk and Recorder; the parcel line is a drawing of it, which applies near Black Coulee National Wildlife Refuge as much as anywhere. Inherited tracts near Upper Missouri River Breaks National Monument can sit on a long string of deeds, and a title company earns its fee on a real sale.
Lining it up with the parcel map
FEMA's map shows zones but not ownership, so pair it with the Montana Cadastral for the outline of the tract near Upper Missouri River Breaks National Monument.
What a flood zone means for a buyer
If you're looking near Hogeland, get the Elevation Certificate if one exists: it can change the insurance price a lot. Building or adding on near Lodge Pole in a mapped zone usually means extra permit review; check with the county or town building office early.
A short flood checklist
Out toward Hartland Colony, ask the seller about past flood claims before closing; an insurance quote early keeps the budget honest.
Blaine County: common questions
Can I see flood zones on the Montana Cadastral for land near Black Coulee National Wildlife Refuge?
With a lot near Fort Belknap Agency, a flood layer may appear in the Montana Cadastral layer list, though it can lag behind FEMA's current panels.
How often are flood maps updated near Milk River?
For acreage around Harlem, FEMA revises flood maps panel by panel as new studies finish, so look at the panel date.
Can I challenge a flood zone near Chinook?
For most people, FEMA's LOMA process is the usual route when a building near Black Coulee National Wildlife Refuge sits above the base flood elevation; a surveyor's elevation data supports it.
What is a base flood elevation near Upper Missouri River Breaks National Monument?
For land near Milk River, the base flood elevation is the water level expected in the 1% annual chance flood, and an Elevation Certificate compares the building to it.
Who do I call about a parcel near Fort Belknap Agency?
With a lot near Fort Belknap Agency, values are the Montana Department of Revenue's job; recorded documents belong to the County Clerk and Recorder.
Open the official Blaine County, MT parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.