Rolling hills in Nan Province, east of Chiang Mai

Landscape in Nan Province

Hillside in late-afternoon sun, Nan Province

Mountainous landscape between Chiang Mai and Pai

Conifers among the clouds at Rakjang Viewpoint, Chiang Mai Province

Farm country near Santichon, northern Thailand

Forested hills between Chiang Mai and Pai

View among the clouds, between Chiang Mai and Pai

Landscape near Hot, south of Chiang Mai

The Mae Chaem River, near Ob Luang national park

Mae Chaem River

The Mae Chaem River in Ob Luang national park, Chiang Mai Province

Ob Luang national park

Mae Chaem River, Ob Luang national park

Ob Luang is noted in particular for its gorge, seen here, which the Mae Chaem River has carved out of extremely hard metamorphic rock thrust to the surface along a fault created by geologic uplift. The rock layer and its massive boulders represent the oldest type of rocks in Thailand.

Royal Poinciana in Ob Luang national park

Another view of the river in Ob Luang park

Metamorphic rocks, Ob Luang park

Forested hilside and rice fields above Mae Hong Son, northern Thailand

Cattle being herded along a dirt road, Mae Hong Son Province

Mae Hong Son Province lies northwest of Chiang Mai, bordering Burma (Myanmar)

Mae Hong Son landscape with clouds

Mae Hong Son landscape

Mountainous landscape near Ban La Up, Mae Hong Son Province

Mountainous landscape north of Mae Sariang, Mae Hong Son Province

The shed serves as storage structure and shelter on the surrounding farmland

Landscape near Ban La Up, Mae Hong Son Province

Clearcutting of forested land and slash-and-burn farming, though illegal, are widespread in many parts of Thailand. Both have contributed to serious environmental problems, including loss of habitat, erosion, and flooding.

Another mountain view near Ban La Up

Entranceway to a mountainside home

Hillside and clouds, Mae Hong Son Province

View of a valley in the western branch of the Thanon Thong Chai range, Mae Hong Son Province

The valley

Farmland between Chiang Mai and Pai