Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Questionable value here

Of the 75 sites in the book, the author states 30 of them are inaccessible to collecting! The sites are either "closed", on reservations, or require a club membership to visit.Out of 11 other sites in the book assumed to be open to collecting that I visited, 6 were closed - mostly "No Trespassing" signs and locked gates.The remaining 5 sites were not very good collecting sites...There is not much in the way of practical collecting sites in this book.