Been going to wildlife refuge for years without maps and climbing on the Zoo wall area in the Narrows. Would not call this a hard trail as shown. Noticed the keyhole class 4 route is not listed. Just loaded the app so maybe will try out adding the option for the trail but it is possible to fall and have to use your hands which is why it is a class 4 route but it is not a class 5 climbing route. Will try out the app with my son this summer and see if it matches where I have hiked.