Limestone streams are known for an abundance of large trout and an abundance of insect life. More insects means more food for trout, and more food means larger trout.

The Limestone Map of Pennsylvania is based on Professor Higbee's ® Stream & Lake Map of Pennsylvania. It shows where the underlying limestone deposits are in Pennsylvania. A high level of stream detail shows all creeks, rivers and even unnamed tributaries flowing through the limestone deposits highlighted on the map in south-central and south-eastern Pennsylvania.

Low acid limestone streams, also called spring creeks, create ideal conditions for both insect life, aquatic plants and large trout.

If flowing from underground they also tend to have a steady temperature which is cooler in summer and warmer in winter. For these reasons the Limestone Map of Pennsylvania belongs in every fly fisher's collection.

The size of the full state stream map is 33-inches-by-55-inches. The new Limestone Stream Map of Pennsylvania is 25-inches-by-45-inches. You'll be able to locate the famous name limestones plus hundreds of lesser known possibly overlooked gems on a laminated map.