By Bob Mason | Yreka, CA, USA

By Bob Kelly | Ardsley, NY, USA

By Bob Babcock | Sky over the Potomac River near Lander, Maryland, USA

By Bob Mariani | Westend Pond, Goudlsboro, PA

By Bobbi Bailin | West Falmouth MA overlooking Buzzards Bay

By Bob Kelly | Ardsley, NY, USA

By Bobby Vaughn | South Padre Island, TX

By Bob Kelly | Ardsley, NY, USA

By Bob Kelly | Ardsley, NY, USA

By Bob Olsen | New Haven, CT USA

By Bob Kelly | Ardsley, NY, USA

By Bob Kelly | Ardsley, NY, USA

By Bob Kissling | Ocean City, New Jersey USA

By Bob Kelly | Ardsley, NY, USA

By Bob Kuo | Root Glacier, Kennecott, Alaska

By Bob Kelly | Ardsley, NY, USA