St. Croix River flowing through the Dalles of the St. Croix at Interstate State Park in Taylors Falls, Minnesota, USA. (5 June 2015) (downstream is to the right)
The Dalles of the St. Croix is a relatively narrow, rock-lined gorge through which the St. Croix River flows. It is most easily viewed from either the Wisconsin or the Minnesota side of Interstate State Park.
The rocks making up the gorge are 1.1 billion year old flood basalt lava flows (Clam Falls Volcanics) that filled up an ancient rift valley called the Mid-Continent Rift.
The view of the river shown above is from Angle Rock, a significant rocky promontory that marks the upstream end of a fault-controlled jog in the course of the St. Croix River.
Tags: St. Croix River Dalles Taylors Falls Minnesota Interstate State Park Clam Volcanics basalt lava flows Precambrian Proterozoic Mesoproterozoic Mid-Continent Rift Valley Angle Rock
St. Croix River north of the town of Stillwater, Minnesota, USA. (4 June 2015)
Downstream is to the right.
Tags: St. Croix River Stillwater Minnesota Wisconsin
St. Croix River flowing through the Dalles of the St. Croix at Interstate State Park in Taylors Falls, Minnesota, USA. (5 June 2015) (downstream is to the right)
The Dalles of the St. Croix is a relatively narrow, rock-lined gorge through which the St. Croix River flows. It is most easily viewed from either the Wisconsin or the Minnesota side of Interstate State Park.
The rocks making up the gorge are 1.1 billion year old flood basalt lava flows (Clam Falls Volcanics) that filled up an ancient rift valley called the Mid-Continent Rift.
The view of the river shown above is from Angle Rock, a significant rocky promontory that marks the upstream end of a fault-controlled jog in the course of the St. Croix River.
Tags: St. Croix River Dalles Taylors Falls Minnesota Interstate State Park Clam Volcanics basalt lava flows Precambrian Proterozoic Mesoproterozoic Mid-Continent Rift Valley Angle Rock
St. Croix River flowing through the Dalles of the St. Croix at Interstate State Park in Taylors Falls, Minnesota, USA. (5 June 2015) (downstream is to the right)
The Dalles of the St. Croix is a relatively narrow, rock-lined gorge through which the St. Croix River flows. It is most easily viewed from either the Wisconsin or the Minnesota side of Interstate State Park.
The rocks making up the gorge are 1.1 billion year old flood basalt lava flows (Clam Falls Volcanics) that filled up an ancient rift valley called the Mid-Continent Rift.
Tags: St. Croix River Dalles Taylors Falls Minnesota Interstate State Park Clam Volcanics basalt lava flows Precambrian Proterozoic Mesoproterozoic Mid-Continent Rift Valley
St. Croix River north of the town of Stillwater, Minnesota, USA. (4 June 2015)
Downstream is to the right.
Tags: St. Croix River Stillwater Minnesota Wisconsin