Hongyu Guo:
Lower Falls
Hongyu Guo:
Lower Falls, Yellowstone
Hongyu Guo:
Lower Falls
Hongyu Guo:
IMG_7722
Hongyu Guo:
IMG_7657
Hongyu Guo:
Undine Falls
Hongyu Guo:
IMG_7617
Hongyu Guo:
DSC03258
Hongyu Guo:
Yellowstone River
Hongyu Guo:
IMG_7314
Hongyu Guo:
IMG_7302
Hongyu Guo:
IMG_7216
Hongyu Guo:
IMG_7108
Hongyu Guo:
IMG_7104
Hongyu Guo:
DSC02810
Hongyu Guo:
Yellowstone Midway Geyser Basin overview
Hongyu Guo:
IMG_6959
Hongyu Guo:
IMG_6932
Hongyu Guo:
IMG_6928
Hongyu Guo:
Old Faithful
Hongyu Guo:
IMG_6891
Hongyu Guo:
IMG_6889
Hongyu Guo:
Grand Prismatic Spring @ Yellowstone
Hongyu Guo:
IMG_6858
Hongyu Guo:
IMG_7157
Hongyu Guo:
IMG_7165
Hongyu Guo:
IMG_6884
Hongyu Guo:
DSC02841
Hongyu Guo:
IMG_7064
Hongyu Guo:
Black Pool, Yellowstone
