Use trail platforms such as AllTrails, Hiking Project, and COTrex (Colorado Trail Explorer) to filter hikes by distance, elevation gain, difficulty, and user ratings. Look for beginner, intermediate, or advanced filters and pay close attention to elevation gain and total distance, as these are the best indicators of how strenuous a trail will be. Reading recent user reviews will help you understand current trail conditions, crowd levels, and any closures. You can also consult local guidebooks and ask staff at Denver outdoor gear shops or ranger stations for recommendations tailored to your fitness and experience level.

Several well-known hiking areas are within an hour of Denver and offer a wide range of trails. Popular destinations include Golden (Lookout Mountain, North Table Mountain), Boulder (Chautauqua Park, Mt. Sanitas, Flatirons trails), Evergreen (Maxwell Falls, Alderfer/Three Sisters Park), and the Front Range foothills around Morrison (Red Rocks Park, Matthews/Winters Park). For higher-elevation hikes, consider the trails near Idaho Springs, Georgetown, and Echo Lake along the Mount Evans Scenic Byway. These areas provide options from short scenic walks to full-day summit attempts.

Lower-elevation trails near Denver are typically accessible year-round, but the prime hiking season generally runs from late spring through mid-fall. In spring, expect muddy and sometimes icy conditions, especially on shaded sections. Summer offers the widest trail access but also brings afternoon thunderstorms in the high country, so plan earlier starts and be off exposed ridges by early afternoon. Fall provides cooler temperatures, colorful foliage, and often drier trails. Winter can still offer good hiking on front-range foothill trails, but you may encounter snow and ice, making traction devices and extra layers important. Always check recent trip reports and weather forecasts before heading out.

Evaluate your fitness level and experience honestly before selecting a route, focusing on elevation gain and altitude as much as distance. Denver sits at about 5,280 feet, and many nearby trails quickly climb higher, which can increase fatigue and the risk of altitude-related issues. Check the weather forecast for both Denver and the specific trailhead, as mountain conditions can change rapidly. Bring sufficient water, sun protection, layers for changing temperatures, and traction in colder months. Let someone know your plans and turnaround time. Be aware of wildlife, stay on marked trails, and respect closures for wildlife, maintenance, or fire danger. Choosing well-marked and well-traveled routes is advisable if you are new to the area.

Start with official land management websites such as Denver Parks and Recreation, Jefferson County Open Space, Boulder Open Space and Mountain Parks, Colorado Parks and Wildlife, and the U.S. Forest Service for national forest lands. These sites publish current regulations, parking fees, leash rules for dogs, seasonal closures, and trail maintenance updates. The COTrex app and website also aggregate official data and show real-time closure information for many Colorado trails. Cross-check this information with recent reports on trail apps and local hiking groups, but rely on the official sources for final confirmation of rules and restrictions before you go.