This is a challenge cache. The cache is at the posted coordinates. Cache hunters are welcome to sign the log at any time but cannot log this as a find until they complete the challenge.
The challenge: Add the number of caches with the “Bicycle Allowed” attribute you’ve found. To meet this challenge, your total number must be greater than or equal to 400.
As of 20 Aug 2018, I have found 404 of these attributes. You can use the challenge checker to verify this for yourself.
The Project GC Challenge Checker will verify you qualify; however, I encourage cache hunters to show their list of attributes for others to see.
Enjoy and good hunting!