The Champion Tree Hike will be an all-day event, starting at 8:30 a.m. Monday at the Lower Hermosa campground’s closure gate in Durango. This hike will be strenuous and will cover 9 to 10 miles, depending on trail conditions.

The Bike and Hike will be an all-day event, starting at 9 a.m. Tuesday at the Upper Hermosa trailhead. The moderate to strenuous trip will take mountain bikers from the Upper Hermosa trailhead to the burn perimeter and switch to a hike through the burn.

The Old Growth Walk will take place from 9 a.m. to 2 p.m. Oct. 13 at the Lower Hermosa campground’s closure gate The moderate hike will be 2 to 3 miles long and explore the ponderosa pine old growth in the burn area.

Participants should wear sturdy hiking shoes, bring water, lunch snacks and a hat. Bikers will need to bring their own bikes and appropriate gear.

To sign up for a field trip and for more information, call Gretchen Fitzgerald at 385-1219 or the Columbine Ranger District at 884-2512 or email [email protected].