North Coast Bitou Longdong Geopark | Taiwan Geoparks Network

A staggered layer sedimentary landscape in the nose of the northeast corner of Taiwan. The staggered layer is due to the change in the depth of the seawater when the sediments are deposited, causing the sediments in different periods to have different angles of intersection during the sedimentation. After the formation of the rock layer, the sedimentary rock layer is formed, and the layers are layered.

Bitou Cape

Bitou Cape Hiking trail

A part of the North Coast from above

The landscape of the trace fossils in the nose of the northeast corner of Taiwan. Biomarkers show the traces of biological activities during the deposition of sediments in the past. This photo is a sand stick landscape taken in the Bitoujiao area of the Northeast Coast.

Differential erosion of the Bitoujiao in the northeast corner of Taiwan. Due to the phenomenon of differential erosion, relatively hard rocks protrude, while softer parts sag. Holidays even become a good place to shade and shelter from rain.

You can also see argillaceous sandstone layers and shale layers at the cape corner. These layers are relatively weak compared to sandstone layers, so many sandstones are often seen protruding from the surface. If you carefully observe the composition of the argillaceous sandstone, you can see many biomarked fossils, among which sand sticks are common biological drilling remains in this area.

Honeycomb-shaped rocks can be seen on the sandstone. The reason for the unevenness of the rock surface is that the creatures excavated small pits on the rocks, and the salt water was accumulated in these pits, which were caused by weathering and erosion along the perimeter of the pits.

The sea erosion cliff at Bitou cape has a staircase pattern in some places. This is the initial stage of the sea erosion cliff. When the sea erosion cliff is continuously eroded, the sandstone protruding on the cliff surface will collapse, and finally a relatively large cliff will be formed

The landscape of the trace fossils in the nose of the northeast corner of Taiwan. Biomarkers show the traces of biological activities during the deposition of sediments in the past. This photo is a sand stick landscape taken in the Bitoujiao area of the Northeast Coast.

This fault on the Northeast Coastal Highway is located next to the Longdong South Exit Visitor Center. From the displacement of the rock formations in the picture, it can be seen that this is a fault moving to the left.

Bitoulongdong Geopark (provided by the Northeast and Yilan Coast National Scenic Area Administration)

Rock layers and joints can be seen on Bitou cape sea erosion platform. Due to the relatively weak shale layers or joints in the rock when the seawater continues to erode, the rocks is easy to be eroded and depressed. These places that are sunken on the sea erosion platform where the joints or shale formations are.

Most of the rock formations at Bitou Cape are sandstone mixed with thin layers of shale. When the shale layer is eroded, grooves are formed in the sandstone. It is easy to observe the bedding and some sedimentary structures of the rock. Therefore, on the sea erosion platform, it is quite suitable for the education of geological terrain environment.