This interpretive sign explains the geologic history of the Birch area at the put-in for Birch Creek Wild and Scenic River, Mile 94 on the Steese Highway, Alaska. From here the river flows through the hills of the Steese National Conservation Area before joining Yukon Flats and the Steese Highway past the town of Central, Alaska. BLMAKNC410. Photo by Craig McCaa, BLM Alaska.
BLM Alaska
CC BY 2.0
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/76641642@N08/35925496810/">https://www.flickr.com/photos/76641642@N08/35925496810/</a>