A perfect late summer day in northern Alaska. After a recent week of cold, wet weather during which Polar Field Services staff at Toolik Field Station, Alaska, attended annual meetings and helped the CPS construction crew wrap up maintenance projects, the sun broke through. The hard-working staff took a well-deserved hike to Galbraith Lake, a 10-mile drive from camp. Walking up a drainage channel, they captured the following shots of the northern Brooks Range and the changing colors. Summer's not quite over, but with the field and construction seasons winding down, change is yet again in the air. All photos by Stan Wisneski, Polar Field Services Alaska Operations Manager.

Polar Field Service staffers Jason Neely, Annalisa Neely, Zach Flowers, and Larry Gullingsrud can't figure out which way is up.

The sun may be shining bright, but the reddening tundra betrays the seasonal change that lurks around the corner.

Refreshing streams make great swimming holes for brave, brave people.