Cache has been repositioned so it no longer requires walking in the fragile flutterby environment. You can reach it just off of the paved trail and not be as visible to the houseboat dwellers on the river. Please be alert for joggers, walkers, and bikers passing on the trail as you retrieve and replace the container. The best parking is at about N45 28.400 x W122 40.183, the cache is about a 0.4 mile walk from here. You are looking for a cammo painted 30cal ammo can.
To locate the cache go to the coordinates listed. Here you will find a sign explaining this little nature preserve. Using the info on this sign you can answer this question:
What are the triangular cuts on the hind wings of a butterfly often called?_______
Let A = the number of letters in your 2 word answer minus 1
Let B = the number of letters in the first word times 2
Let xxx = (25*A) + B
From the location of the sign you can see a bench along the river bank. There is a plaque by the bench indicating who placed it and who it was placed for.
Let C = the number of letters in the name of who placed the plaque times the number of words in the name
Let D = the number of letters in the name of whom the plaque was placed in memory of times the number of words in this name
Let yyy = C + D + 4
A checksum for this is 48 (letters in C + words in C + letters in D + words in D)
Now go to the final location at N45 28.yyy W122 40.xxx