In some cases the standard-setting part includes requirements or other specifications that apply for high-altitude counties. The following counties have substantial populated areas above 4,000 feet above sea level and are therefore considered to be high-altitude counties:

STATE OF ARIZONA

Apache

Cochise

Coconino

Navajo

Yavapai

STATE OF COLORADO

Adams

Alamosa

Arapahoe

Archuleta

Boulder

Chaffee

Cheyenne

Clear Creek

Conejos

Costilla

Crowley

Custer

Delta

Denver

Dolores

Douglas

Eagle

Elbert

El Paso

Fremont

Garfield

Gilpin

Grand

Gunnison

Hinsdale

Huerfano

Jackson

Jefferson

Kit Carson

Lake

La Plata

Larimer

Las Animas

Lincoln

Mesa

Mineral

Moffat

Montezuma

Montrose

Morgan

Otero

Ouray

Park

Pitkin

Pueblo

Rio Blanco

Rio Grande

Routt

Saguache

San Juan

San Miguel

Summit

Teller

Washington

Weld

STATE OF IDAHO

Bannock

Bear Lake

Bingham

Blaine

Bonneville

Butte

Camas

Caribou

Cassia

Clark

Custer

Franklin

Fremont

Jefferson

Lemhi

Madison

Minidoka

Oneida

Power

Teton

Valley

STATE OF MONTANA

Beaverhead

Deer Lodge

Gallatin

Jefferson

Judith Basin

Powell

Madison

Meagher

Park

Silver Bow

Wheatland

STATE OF NEBRASKA

Banner

Cheyenne

Kimball

Sioux

STATE OF NEVADA

Carson City

Douglas

Elko

Esmeralda

Eureka

Humboldt

Lander

Lincoln

Lyon

Mineral

Nye

Pershing

Storey

Washoe

White Pine

STATE OF NEW MEXICO

Bernalillo

Catron

Colfax

Curry

De Baca

Grant

Guadalupe

Harding

Hidalgo

Lincoln

Los Alamos

Luna

McKinley

Mora

Otero

Rio Arriba

Roosevelt

Sandoval

San Juan

San Miguel

Santa Fe

Sierra

Socorro

Taos

Torrance

Union

Valencia

STATE OF OREGON

Harney

Lake

Klamath

STATE OF TEXAS

Jeff Davis

Judspeth

Parmer

STATE OF UTAH

Beaver

Box Elder

Cache

Carbon

Daggett

Davis

Duchesne

Emery

Garfield

Grand

Iron

Juab

Kane

Millard

Morgan

Piute

Rich

Salt Lake

San Juan

Sanpete

Sevier

Summit

Tooele

Uintah

Utah

Wasatch

Wayne

Weber

STATE OF WYOMING

Albany

Campbell

Carbon

Converse

Fremont

Goshen

Hot Springs

Johnson

Laramie

Lincoln

Natrona

Niobrara

Park

Platte

Sublette

Sweetwater

Teton

Uinta

Washakie

Weston