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Photo by Jay Mantri on Unsplash
EasyGround

Sleepy Lion Trail

Lyons, Colorado · Boulder County

Sleepy Lion Trail is a easy hiking trail near Lyons in Boulder County, Colorado.. The surface is ground. Trail data is sourced from OpenStreetMap.

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40.21900, -105.35514
Open in OpenStreetMap
5-Day Forecast

Weather at Sleepy Lion Trail

Live forecast for the trailhead. Use it to pack and time your hike.

Avg High88°F
Avg Low63°F
Peak Rain Chance13%
Humidity31%
UV (avg)8
Air Quality80 · Moderate
Today
🌦
Light Drizzle
82°/59°
💧 3%🌬 10mph
5:58 AM8:16 PM
Sat
☁️
Overcast
88°/62°
💧 1%🌬 9mph
5:59 AM8:15 PM
Sun
☁️
Overcast
94°/69°
💧 1%🌬 15mph
6:00 AM8:14 PM
Mon
☁️
Overcast
95°/69°
💧 9%🌬 15mph
6:01 AM8:13 PM
Tue
☁️
Overcast
79°/55°
💧 13%🌬 13mph
6:02 AM8:12 PM

Forecast data © Open-Meteo. Refreshed every 6 hours. Always check the most recent forecast before heading out.

About Sleepy Lion Trail

Sleepy Lion Trail is a easy hiking trail near Lyons in Boulder County, Colorado.. The surface is ground. Trail data is sourced from OpenStreetMap.

What “Easy” Means

Gentle terrain, well-marked. Suitable for all ages and fitness levels.

Difficulty is derived from OpenStreetMap’s Swiss Alpine Club (SAC) hiking scale, trail visibility, surface, distance, and elevation gain. Always verify current conditions before heading out.

What to Pack & Wear

Personalised to this trail’s length, elevation, difficulty, and the live forecast.

👔 What to Wear

  • 👕
    UPF sun shirt (long sleeve)
    Cooler than direct sun on bare skin.
  • 🩳
    Light shorts/skirt
    Loose-fit, breathable.
  • 🧢
    Wide-brimmed sun hat
    Plus a buff/bandana you can wet for cooling.
  • 🕶
    Polarized sunglasses
    Critical for glare from sun + sand/water.

🎒 What to Pack

  • 💧
    Water
    Bring at least 1L of water; more in heat.
  • 🍫
    High-energy snacks
    A snack for the trail.
  • 🧴
    Sun protection (UV 8)
    SPF 50+ sunscreen, lip balm w/ SPF, sunglasses, sun hat.
  • 🩹
    First-aid kit
    Blister patches, ibuprofen, tape, antiseptic wipes.
  • 🗺
    Offline map
    Download your route in advance via Gaia, Caltopo, or OSM-based apps.

Recommendations adapt to the current forecast + trail stats. Use them as a starting point — local conditions, your experience, and the time of day you start all matter.

Trail Safety in Colorado

Trail conditions in Colorado change with weather, season, and fire activity. Closures, washouts, and rerouting are common. Before heading out:

  • Check with the land manager for current conditions and closures
  • Tell someone your plan and expected return time
  • Know your turn-around limits — conditions can change fast
  • Carry the 10 essentials: water, food, navigation, first aid, light, fire, shelter, knife, sun protection, extra clothes

Frequently Asked Questions

How hard is Sleepy Lion Trail?

Sleepy Lion Trail is rated Easy. Suitable for most hikers including families.

Can I ride a bike on Sleepy Lion Trail?

No — this trail is closed to bicycles.

Are horses allowed on Sleepy Lion Trail?

No — this trail is closed to horses.

What is the trail surface on Sleepy Lion Trail?

The surface is ground. Natural surface — sturdy footwear recommended; can be muddy after rain.

When is the best time to hike Sleepy Lion Trail?

Colorado has trail conditions that vary by season. Spring and fall usually offer the best mix of temperature and trail conditions. Check the 5-day forecast above for current outlook. Always verify trail status (closures, washouts, fire restrictions) with the local land manager before going.