CO — Colorado
CO Alpine Wildflower Peak
Colorado high country wildflowers hit peak bloom — Maroon Bells columbine, Gothic Basin paintbrush, and San Juan indian paintbrush. Elevations 10,000–13,000 ft peak typically July 5–20.
CO Ski Season Opens
Colorado's early-opening ski resorts launch — Arapahoe Basin, Loveland, and Keystone typically open by Thanksgiving weekend. Snowpack check before making travel plans.
MT — Montana
Going-to-the-Sun Road Opens
Glacier NP's iconic 50-mile alpine highway fully opens for vehicles — one of the most spectacular drives in North America. Typically opens mid-June; exact date depends on snowpack.
MT Alpine Wildflower Peak
Glacier NP, Bob Marshall Wilderness, and Beartooth Plateau hit peak wildflower season — beargrass, Indian paintbrush, and glacier lilies in full bloom above 6,000 ft.
MT Elk Archery Season Opens
Montana archery elk season begins statewide. Early season access to river bottoms and burn areas while high country remains open.
MT General Elk Rifle Season Opens
Montana general elk rifle season opens statewide. High country access depends on early-season snowpack — check road conditions before heading to remote units.
GNFAC/WCMAC Avalanche Season Begins
Montana avalanche centers begin daily forecasts for all backcountry zones. Early season instability, weak layers from early cold snaps — check forecasts before every backcountry outing.
WY — Wyoming
WY Snake River Runoff Peak
Snake River and Wind River drainage reach peak runoff. Class III–IV conditions on the Snake above Jackson. Verify gauge levels and check with outfitters before floating.
WY Teton + Beartooth Wildflower Peak
Grand Teton and Beartooth Plateau hit wildflower peak — Indian paintbrush (WY state flower), arrowleaf balsamroot, and sticky geranium blanketing Jackson Hole meadows above 6,500 ft. July 10–25 is prime.
WY Fire Season Begins
Wyoming's fire season typically ramps up in mid-July after spring green-up. USFS fire restrictions often apply in the Bighorns, Wind Rivers, and southeastern Wyoming. Check current restrictions.
WY Elk Archery Season Opens
Wyoming archery elk season begins. High country units in the Wind Rivers and Bighorns produce excellent early-season opportunity before rifle pressure.
WY Elk General Rifle Season
Wyoming general elk rifle season opens. Type 1-6 areas have staggered openers — verify your hunt area. Snow in high country can create excellent conditions for locating animals.
ID — Idaho
ID High Country Wildflower Peak
Sawtooth Wilderness, White Cloud Peaks, and Selway-Bitterroot wildflower peak — glacier lily, columbine, and penstemon carpeting alpine meadows above 8,000 ft.
ID Elk Archery Season Opens
Idaho archery elk season begins. Clearwater, Salmon River, and Selway zones offer some of Idaho's best early-season opportunity in the roadless wilderness.
ID Elk General Rifle Season
Idaho general elk rifle season opens. Unit-specific openers vary — verify your tag. Selway-Bitterroot and Gospel Hump wilderness units are remote; plan accordingly.
UT — Utah
UT Fire Restriction Season
Utah's high desert fire season peaks July–September. Stage 1 restrictions often extend across USFS, BLM, and NPS lands statewide. Check current restrictions before any campfire.
UT Alpine Wildflower Peak
Wasatch high country, Uinta peaks, and Boulder Mountain hit wildflower peak — mule's ear sunflower, penstemon, and Indian paintbrush above 9,000 ft. Timpanogos, Twin Peaks, and Cecret Lake access trails are prime.
UT Elk Archery Season Opens
Utah archery elk season begins. Wasatch Front, Manti, and Book Cliffs units offer opportunities — draw tags required for most premium units. Verify your permit.
Moab Peak Adventure Season
Temperatures drop below 100°F in Moab — peak season for Canyonlands, Arches, and desert slickrock. Spring window (March–May) and fall window (September–October) are the sweet spots.
UT Elk Rifle Season Opens
Utah general elk rifle season opens. Limited entry units require draw tags; general season areas are open to all valid tag holders. Orange recommended on public land trails.
UAC Avalanche Season Begins
Utah Avalanche Center begins daily forecasts for Wasatch, Uintas, and southern zones. Wasatch is one of the nation's most avalanche-active ranges — check forecasts before every backcountry outing.
UT Ski Season Opens — Greatest Snow on Earth
Utah ski resorts open — Snowbird and Alta typically first (late November). World-record snowfall years are driven by the Great Salt Lake "lake effect." Check base depths before booking.
NV — Nevada
NV Extreme Heat Season Begins
Las Vegas and southern Nevada valleys regularly exceed 105°F from June through September. Desert hiking is dangerous above 100°F — hike before 8 AM or after 5 PM only. Carry 1 liter per hour minimum.
NV Elk Archery Season Opens
Nevada archery elk season begins in limited-entry units (Ruby Mountains, Bull Run, Jarbidge). Draw odds are extremely low — permit holders should verify unit conditions early.
NV Pronghorn Season Opens
Nevada pronghorn antelope season opens in open desert units. Great Basin pronghorn herds are recovering — verify your permit unit and glassing areas before departure.
NV Fall Desert Adventure Window
Nevada desert temperatures return to the optimal 55–80°F range. Prime season for Sand Mountain, Logandale Trails, and Red Rock Canyon. Crowds minimal compared to spring.
AZ — Arizona
AZ Extreme Heat Season Begins
Phoenix and Tucson regularly exceed 110°F from June through mid-September. Grand Canyon South Rim heat fatalities peak in this window. Hike above 6,000 ft or avoid daytime entirely.
AZ Monsoon Season Begins
Arizona monsoon season (Jul–Sep) brings sudden afternoon thunderstorms with flash flood risk in canyon country. The North Rim trail, Antelope Canyon, and Paria River corridor close on flash flood watches. Check forecasts daily.
AZ Elk Archery Season Opens
Arizona archery elk season begins in the Mogollon Rim and White Mountains units. Draw tags are coveted — if you drew, conditions in the ponderosa zones are typically excellent in late August.
AZ High Country Fall Season
Arizona's Mogollon Rim, White Mountains, and Flagstaff highlands enter fall — aspen gold plus cool temperatures. Ideal for dispersed camping and hiking above 7,000 ft before first snow.
NM — New Mexico
NM Monsoon Season Begins
New Mexico monsoon (Jul–Sep) brings daily afternoon thunderstorms. Flash flood risk in Guadalupe Escarpment canyon slots and Chama River canyons. Lightning risk is highest on Taos Pueblo and Jemez peaks — descend below treeline by noon.
NM High Country Wildflower Peak
Jemez Mountains, Sangre de Cristo range, and Valles Caldera hit wildflower peak — Rocky Mountain iris, clarkia, and scarlet gilia above 8,500 ft. Best viewing: Valles Caldera NP, Santa Fe Basin, Wheeler Peak approach.
NM Elk Archery Season Opens
New Mexico archery elk season begins in Gila NF, Valles Caldera, and Jemez Mountains. Mule deer archery overlaps — check unit-specific rules. Draw permits required for most units.
NM Balloon Fiesta Season + Wind
Albuquerque International Balloon Fiesta (typically first week of October) coincides with strong Rio Grande corridor winds and autumnal weather pattern shifts. Hikers on Sandia Crest should expect gusty conditions.
NM Elk Rifle Season Opens
New Mexico elk rifle season opens. Gila NF and Jemez Mountains are prime units — access roads can be muddy after early-season snow. Check conditions before heading to remote campsites.
🌎 Mountain West (All States)
Mountain West Wildflower Season
High country wildflowers peak across the Mountain West — Glacier NP beargrass, Maroon Bells columbine, Sawtooth lupine, and Wasatch Indian paintbrush. Elevations 8,000–12,000 ft peak July 1–20.
Mountain West Fire Season Peak
Fire season peaks across the Mountain West (July–August). Smoke from large fires in ID, MT, WY, and CO regularly affects air quality across all 8 states. Check AQI before strenuous outdoor activities.
Mountain West Avalanche Season Opens
Avalanche centers across the Mountain West begin daily forecasts — CAIC (CO), UAC (UT), GNFAC/WCMAC (MT), BTAC (WY/MT), SAC (ID). Never travel in avalanche terrain without checking the local forecast.
Mountain West Ski Season Opens
Resorts across CO, UT, WY, ID, and MT open their first lifts — typically Arapahoe Basin, Loveland, Snowbird, and Jackson Hole lead. Snowpack varies by range; check base depths before booking trips.
CO — Colorado (Statewide Events)
Stage 1 Fire Restriction Season
Statewide fire restriction season typically begins in late spring. Campfires often prohibited at elevations below 9,000 ft during high fire danger periods.
14er Season Opens
Colorado's 14,000 ft peaks become accessible to most hikers. Snow consolidation above treeline typically complete by mid-June — always check avalanche and weather conditions.
Elk Archery Season Opens
Colorado's archery elk season begins statewide (select GMUs). Early archery window runs through September.
Deer Rifle Season 1 Opens
First rifle deer season begins statewide. Orange recommended on backcountry trails during hunting season.
Elk Rifle Season 1 Opens
First rifle elk season opens statewide. Prepare for increased backcountry traffic on trails near hunting units.
Avalanche Season Begins
CAIC begins issuing daily avalanche forecasts for all Colorado backcountry zones. Early season instability is common — always check forecasts before venturing above treeline.