Climb Tasmania publishes a number of excellent guidebooks to areas in Northern Tasmania.
They are available at http://www.osp.com.au/htm/climbing.html

Cataract

Covers the Cataract Gorge

North Esk

Covers crags along the North Esk river, including:

• Riverbend
• Grap Fureau

South Esk

Covers crags along the South Esk river, including:

• Duck Reach
• Willow Jungle
• and heaps more

Climb Northern Tasmania