A good 5.7 is hard to find.

Great 5.10s abound, not to mention 5.11s and 5.12s, but you can count all the good 5.7 routes in the Sierras of Balcarce on one finger of one one hand. Here's a shot of Analia climbing De Las Avispas, that one, good 5.7 route, while her husband Martin pulls in the slack.