Smith Falls State Park

Smith Falls State Park
Smith Falls is on the Niobrara River, a National Scenic River.  The Smith Falls is Nebraska’s highest waterfall.  “Not only is the land home to the beautiful falls, it is also an area of biological significance where several ice age species can still be found.”      Here is the Park website.    Phone 402-376-1306  Map
Both Trip Advisor and Yelp give it good reviews.
The trail to the falls is fine hard packed gravel and is wheelchair accessible.