Blog · October 14, 2026 · Montana
Meagher County Flood Zone Map, Montana: a practical guide
Flood zones are set by FEMA, and checking one near Springdale Colony takes a few minutes.
Main page: Meagher County, MT GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Martinsdale? The Meagher County flood zone map tells you whether FEMA puts it in a high-risk zone, and the lookup is free. What this Meagher County guide covers: locating a parcel on FEMA's map, reading the zone codes, and pairing it with the Montana Cadastral.
The Meagher County flood zone map: start here
If you're looking near Lewis and Clark National Forest, start with FEMA's Flood Map Service Center: enter the street address, and choose the dynamic map. Vacant ground around Lewis and Clark National Forest can still be found: zoom in from the nearest road and click the spot.
Pulling up a parcel
Begin with the Montana Cadastral; it includes every tax parcel around Springdale Colony and White Sulphur Springs. On ground around Martinsdale, put in a street address, an owner's name or a parcel number, and the matching parcel lights up. On ground around Helena National Forest, save the parcel ID before closing the panel; each clerk in the county will want it.
Zones on the Meagher County flood zone map
Out toward White Sulphur Springs, A and V zones mark the Special Flood Hazard Area, land with a 1-percent chance of flooding in any year. For a parcel near Lennep, shaded Zone X marks moderate flood hazard, roughly the 100- to 500-year range; unshaded X is minimal risk.
Neighboring parcel maps
Meagher County borders Broadwater County, Cascade County, Gallatin County, Judith Basin County, and Lewis and Clark County, and each of those keeps its own parcel map. Ground near Copperopolis that runs to the line can be split across two assessors' files, so check the neighboring map before you assume the acreage. For land near Gallatin National Forest, the Platbookmapper state page links each neighboring county map for Montana.
Using it on a phone
Most viewers work in a phone browser, useful out on a road near Martinsdale, though signal can drop in rural spots. A printout of the tract near Lewis and Clark National Forest keeps working without signal.
Lining it up with the parcel map
FEMA doesn't draw property lines, so pair it with the Montana Cadastral for the outline of the tract near Checkerboard.
A short flood checklist
In and around Lewis and Clark National Forest, request for any Elevation Certificate before closing; getting a quote early keeps the budget honest.
Getting your bearings
White Sulphur Springs is the county seat, where most land records are kept. Other places on the map include Martinsdale, Springdale Colony, Checkerboard, and Copperopolis, each with its own cluster of lots. Around 2,071 people call Meagher County home (Census estimate, 2023) across about 2,392 square miles. Meagher County dates to 1867, and some chains of title near Copperopolis are long. Landmarks such as Gallatin National Forest help you orient on the aerial.
Insurance, lenders and building
With a lot near Copperopolis, get the Elevation Certificate if one exists: it records the building's elevation against the base flood. New construction in a floodplain near Springdale Colony often needs a floodplain permit; ask the local floodplain administrator before you plan.
Recorded documents worth pulling
When the details count, get the recorded deed through the County Clerk and Recorder; the parcel line is a drawing of it, and that holds around Gallatin National Forest too. Older tracts around Gallatin National Forest can sit on many deeds, and a title company earns its fee if money is changing hands.
Limits of the parcel data
Out toward Copperopolis, acreage on the record is a tax-roll number; just a licensed surveyor sets the real lines on the ground. On ground around Lennep, owner names and values update on a schedule, so a deed recorded last month can take weeks to appear.
Beyond the mapped zones
Small streams around White Sulphur Springs may not have detailed mapping, so ask neighbors about past flooding. Wetlands near Springdale Colony can limit building even outside a flood zone; the National Wetlands Inventory mapper shows mapped wetlands.
Reading the legal description
Montana is laid out under the Public Land Survey System, so rural legal descriptions near Lewis and Clark National Forest cite section, township and range. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though sections near White Sulphur Springs can be irregular. Write down the legal description for the tract near Copperopolis for any title or survey request.
Quick answers
Can I see flood zones on the Montana Cadastral near Gallatin National Forest?
For a parcel near Martinsdale, a flood layer may appear in the Montana Cadastral layer list, though it can lag behind FEMA's current panels.
What if the flood map is wrong for my lot near Helena National Forest?
On ground around Gallatin National Forest, a Letter of Map Amendment (LOMA) from FEMA can remove a structure on naturally high ground; a surveyor's elevation data supports it.
Is Zone X safe from flooding around Lewis and Clark National Forest?
Short answer: X zones around Lennep are lower risk, not no risk, and floods still happen outside high-risk zones.
What is the difference between Zone A and AE around Gallatin National Forest?
Good question; AE is a Special Flood Hazard Area with a published base flood elevation, so builders near Helena National Forest design to that elevation.
What's the tax parcel number used for near Lewis and Clark National Forest?
Every office uses it to pull the same file for land near Lewis and Clark National Forest; copy it before you call anyone.
Open the official Meagher 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.