Hawk Mountain Improved Forest Management Project

Drehersville, Pennsylvania

United States

Improved Forest Management

Technical details

As late as the mid-20th century, many state governments paid hunters to kill hawks, owls, and other birds of prey. From 1917 until 1953, when it was a US territory, Alaska even paid bounties of up to $2 for killing our national symbol, the bald eagle. In 1929, the Pennsylvania Game Commission paid $5 (the equivalent of $75 today) for each dead northern goshawk.

In the early 1930s, New York conservationist Rosalie Edge saw photos of a slaughter of hawks by sport shooters at Hawk Mountain, near Drehersville in eastern Pennsylvania. She leased 1,400 acres on the mountain and, in 1935, opened Hawk Mountain Sanctuary to the public. It was the world's first refuge for birds of prey. Today, the sanctuary encompasses 2,600 acres and welcomes more than 60,000 visitors every year. It provides habitat for more than a dozen large birds of prey, including bald eagles, peregrine falcons, and ospreys.

Hawk Mountain's mature oak and hickory forest has substantial timber value. Much of the forest surrounding the sanctuary has been heavily harvested in recent years. However, in 2018, Hawk Mountain Sanctuary and The Nature Conservancy announced a partnership and placed most of the sanctuary's land in a perpetual conservation easement. The sanctuary also established a carbon project that generates income through the sale of carbon credits (also called carbon offsets) instead of timber harvesting. The improved forest management sequesters 45,000 metric tons (49,604 US tons) of carbon dioxide each year above the regional baseline. The project is part of Working Woodlands, a program designed by Bluesource and The Nature Conservancy to encourage forest conservation through carbon offsets.

A carbon offset represents the reduction of 1 metric ton (2,205 pounds) of carbon dioxide emissions. A project might avoid the emissions to begin with, capture and store CO2 before it’s emitted or, as the Hawk Mountain project does, absorb (sequester) CO2 from the atmosphere.

Cloverly buys offsets that meet accepted standards for being real, measurable, verifiable, permanent, and additional. "Additional" means that the carbon savings would not have happened without the offset project and that the project would not have happened unless it got certified to sell carbon offsets. The American Carbon Registry oversees verification of the Hawk Mountain project. You can find verification documents at https://acr2.apx.com/mymodule/reg/TabDocuments.asp?r=111&ad=Prpt&act=update&type=PRO&aProj=pub&tablename=doc&id1=375.

Projects can produce many offsets during a year, depending on how many tons of carbon they avoid, offset, or sequester. So a project may appear more than once in the Cloverly portfolio. You can tell the year of the offset by the date in the web address for each project: "12-months-starting-[month]-[year]." For a list of all the projects in our portfolio and an interactive map, see https://cloverly.com/offset-map.

Percent Utilized


Total Capacity

Instrument Type

Carbon Offset