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Montana
Lewis and Clark County

Lewis and Clark County GIS & Mapping Search

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Montana - Statewide

Natural Resource Mapping

View various interactive and static GIS maps of Montana, such as digital atlas, watersheds, fisheries and streams, hazardous substances, stream and wetland permits, public water supplies, and air quality data.
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Lewis and Clark County

Assessor and Tax Lien Sales

Lewis and Clark County Property Tax Supervisor
316 N Park Ave., Room 113, Helena, MT 59623
Phone (406)447-8362

City of Helena Maps

View various maps of the City of Helena, including street address map, open lands map, parks map, trails map and other maps.

Commission District Maps

View current Lewis and Clark County Commission District maps.

GIS Mapping

Search interactive GIS maps of Lewis and Clark County, including parks, trails, voting precincts and polling places, air quality, zoning, and floodplains.

GIS Maps

View various static GIS maps of Lewis and Clark County, such as zoning, Council districts, subdivisions, evacuation centers, school districts, and roads.
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Voter and Election Information

View Lewis and Clark County voter registration and election information including upcoming election dates, election maps and election results.

Voting Precinct Maps

View Lewis and Clark County voting precinct maps by precinct number, size, and date updates.