More detailed information may be found at the following resources:

Overlooks and Viewing Areas

Overlooks and viewing areas must be connected by a firm and stable route of travel and offer unrestricted viewing of the feature or opportunity.

Telescopes and Viewing Scopes

  • 20 percent, but never less than one, of the telescopes or viewing scopes must be accessible.
  • Surface conditions around the scope must meet accessible requirements including being served by an accessible route of travel.



Photograph shows an accessible viewing scope at the Grand Coulee Dam visitor center.

Man with Binoculars