Blog · October 14, 2026 · Montana
Reading the Musselshell County Flood Zone Map for a parcel
The zone on FEMA's map affects insurance, building and resale near Lake Mason National Wildlife Refuge.
Main page: Musselshell County, MT GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Melstone? Checking the Musselshell County flood zone map reveals whether the lot falls inside a mapped floodplain, and the lookup is free. Covered here for Musselshell County: locating a parcel on FEMA's map, reading the zone codes, and pairing it with the Montana Cadastral.
Where the Musselshell County flood zone map lives
If the land is near Queens Point, start with FEMA's Flood Map Service Center: enter the street address, and pick the FIRMette or map view. Vacant ground around Queens Point can still be found: search the nearest road and click the spot.
The viewer Musselshell County publishes
Go first to the Montana Cadastral; it includes every tax parcel in the county, Melstone included. Without an address in hand, pan along the nearest road and click the parcel itself, whether the land is near Melstone or elsewhere in the county. For acreage around Queens Point, copy the parcel ID before closing the panel; every office in the county will want it.
When a parcel crosses a boundary
Musselshell County borders Fergus County, Golden Valley County, Petroleum County, Rosebud County, and Yellowstone County; every one of them runs a separate parcel map. Ground near Queens Point that runs to the line may be split in two county records, so open the adjacent map too. For land near Delphia, our state page lists every bordering county map for Montana.
Decoding the flood zone labels
For a tract near Lake Mason National Wildlife Refuge, any A or V zone mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. If the land is near Roundup, shaded Zone X marks moderate flood hazard, roughly the 100- to 500-year range; unshaded X means minimal mapped risk.
Who handles what
For assessment questions about property around Queens Point go to the Montana Department of Revenue, since that office keeps the assessment data. Building or septic questions for a lot near Delphia are for the local planning and health departments, depending on whether the land is inside town limits.
Questions to ask before you buy
If the land is near Lake Mason National Wildlife Refuge, ask the listing agent for any Elevation Certificate before closing; getting a quote early avoids surprises.
Low spots and local drainage
Creeks and ditches near Queens Point aren't always studied in detail, so walk the land after rain. Marshy spots near Roundup can limit building too; check the National Wetlands Inventory mapper for a first look.
Before you lean on the lines
In and around Delphia, listed acreage is a tax-roll number; just a licensed surveyor establishes the real corners on the ground. For acreage around Melstone, records update in batches, so a deed recorded last month can take weeks to appear.
Reading the legal description
Montana is laid out under the Public Land Survey System, which means a tract near Roundup is described by section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though real sections near Delphia vary in size. Copy the legal description from the record for the parcel near Roundup before you request a deed or survey.
Lining it up with the parcel map
FEMA's map shows zones but not ownership, so open the Montana Cadastral next to confirm you have the right parcel near Queens Point.
Places you'll see on the map
Roundup serves as the county seat, which is where the courthouse records live. You'll also find Melstone, Delphia, Elso, and Klein, each with its own cluster of lots. About 5,308 people live in Musselshell County (Census estimate, 2023) across about 1,869 square miles. Musselshell County was formed in 1911, and some chains of title near Delphia are long. Features like Lake Mason National Wildlife Refuge help you orient on the aerial.
Lenders and permits
If a building sits in a Special Flood Hazard Area and a federally regulated lender is involved, mandatory purchase rules apply in communities in the NFIP, which applies near Lake Mason National Wildlife Refuge as much as anywhere. New construction in a floodplain near Queens Point often needs a floodplain permit; check with the county or town building office before you plan.
Musselshell County: common questions
How often are flood maps updated near Melstone?
In most cases, zones near Klein can shift when FEMA updates a panel; check the effective date on the panel.
How do I get a property removed from a flood zone for land near Lake Mason National Wildlife Refuge?
For most people, FEMA's LOMA process is the usual route when a building near Lake Mason National Wildlife Refuge sits above the base flood elevation, and lenders accept the result.
Where can I see the Musselshell County flood zone map for free?
For most people, search the address near Roundup on FEMA's Flood Map Service Center, which takes a couple of minutes.
What is a base flood elevation around Elso?
It depends, but the BFE is printed in AE zones on FEMA's map; surveyors near Queens Point use it often.
Who do I call about a parcel near Roundup?
Out toward Lake Mason National Wildlife Refuge, the Montana Department of Revenue handles values and the tax roll, and the County Clerk and Recorder keeps deeds, while zoning questions go to planning
Open the official Musselshell 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.