You can use the link below to book directly or you can call the front desk 920.735.9955 and say they are with the WI County Treasurers Association or C-WCC is the code to get the special rate.
Booking Link: https://www.hilton.com/en/book/reservation/deeplink/?ctyhocn=GRBAPDT&groupCode=CDTWCC&arrivaldate=2022-05-31&departuredate=2022-06-03&cid=OM,WW,HILTONLINK,EN,DirectLink&fromId=HILTONLINKDIRECT
room block held until May 15, 2022.