Protecting and restoring
Left Hand Creek since 2005

Lefthand Watershed Oversight Group 

Since 2005, Lefthand Watershed Oversight Group (LWOG) has encouraged the community to protect and restore Lefthand Creek Watershed for generations to come.

As a stakeholder driven, non-profit organization located in Boulder County, Colorado, LWOG serves the community by monitoring and protecting water quality and important water sources for over 20,000 residential and agricultural water users, implementing restoration projects, and striving to build a strong stewardship ethic within the community.


Stream Stewardship & Recovery Handbook

LWOG lead the development of a Regional Stream Stewardship & Recovery Handbook designed to provide support for landowners who are implementing stewardship practices on their creek-side properties. Email Meg Parker to reserve a copy of the Handbook.

LWOG in the News!

Check out Colorado Public Radio’s story recognizing our Left Hand Creek restoration projects, here. Listen to our executive director, Jessie, speak about the Streamcrest project, and board member, Mark Schueneman, share his story.

Volunteer Event with Micro Motion

Lefthand Watershed Oversight Group would like to thank Micro Motion for partnering with us on this year’s Foothills United Way Day of Caring! The crew helped remove invasive weeds and debris.

Volunteer Event with Xilinx

Lefthand Watershed Oversight Group would like to thank Xilinx for partnering with us on their Global Day of Giving this summer! The crews helped us plant trees at our Streamcrest project site!

Join us in protecting and restoring Left Hand Creek Watershed

Upper Left Hand

Before and After Restoration


Before and After Restoration


Before and After Restoration


Learn more about how we protect and restore Left Hand Creek Watershed

Watershed Insights

Left Hand Watershed in History


Colorado’s First Inter-basin Water Transfer and the Coffin versus Left Hand Ditch Water Case

How did an 1879 water conflict in the Left Hand Creek headwaters come to influence water law in nine western states?


and Left Hand Creek’s Legacy of Mining

Following the discovery of gold in Denver in 1859, it did not take long for miners to work their way up the creeks into the mountains, panning for gold and searching for the veins from which the nuggets came.


is it a Volcano?

Standing rather proudly in the shadow of the Rocky Mountains along the front range of Northern Colorado is a very unique little mountain affectionately known as Haystack Mountain, earning its name by the early dairy farmers who settled on its flanks.