Floris van Breugel / Ponderosa pine (Pinus ponderosa) grove at twilight under a heavy snowfall, Deschutes National Forest, Oregon, USA. December 2009

Floris van Breugel / Ponderosa Pine trees (Pinus ponderosa) coated in frost, during heavy snowfall, Deschutes National Forest, Oregon, USA, December 2009

Michael Durham / Bumblebee (Bombus morrisoni) queen, flying toward Sweet Pea flowers in the Deschutes National Forest, Oregon

Michael Durham / Western Long-eared Myotis (Myotis evotis) about to drink from a man-made guzzler, high-desert transition zone in the Deschutes National Forest, Oregon

Michael Durham / Two-striped Grasshopper (Melanoplus bivittatus) adult female jumping, Deschutes National Forest, Oregon

Kirkendall-Spring / Hiker passing a small lake part way to the summit of South Sister, Three Sisters Wilderness, Deschutes National Forest, Oregon, USA, July 2014. Model released.

Kirkendall-Spring / View north at sunrise from the summit of South Sister, Three Sisters Wilderness, Deschutes National Forest. The Large mountains, distance are Middle Sister, North Sister, Mount Jefferson, Mount Hood a...

Kirkendall-Spring / Woman camping on the crater rim of South Sister, Three Sisters Wilderness, Deschutes National Forest. Oregon, USA, July 2014. Model released.

Kirkendall-Spring / Hiker on the crater rim of Broken Top, and view towards Middle and North Sister. Three Sisters Wilderness, Deschutes National Forest. Oregon, USA, July 2014. Model released.

Kirkendall-Spring / Rainbow over burnt forest along the Three Finger Jack trail, Mount Jefferson Wilderness, Deschutes National Forest. Oregon, USA, July 2014.

Kirkendall-Spring / Rainbow over burnt forest along the Three Finger Jack trail, Mount Jefferson Wilderness, Deschutes National Forest. Oregon, USA, July 2014.

Michael Durham / Smoke from a forest fire obscuring the sun, Deschutes National Forest, Oregon, USA, August 2007.