Instruct: Classify Amazon reviews into positive or negative sentiment
Query: needs further updating

I do love the way this book is written and laid out and concer with the other reviewers that this is THE roadside geology book to have. It is certainly better than the previous 1960s edition (same book title & publisher, different author) as rock formations and roads change. However, after reading some of the descriptions of where to find the formations, I realized, "Hey, that's not there anymore..." i.e. Bergstrom AFB is now Austin's airport and the roads are very different there now than they were in 1991. Another example: Austin chalk formation can't be seen in the place described anymore because of a shopping center. As I get out on the road, I'll be interested to see what else I can/can't find.Maybe the publishers should have a website where rockhounds can report updates...