Map of Overwintering Sites

Use the interactive map below to explore western monarch overwintering sites. Enter a site name, site ID #, or geographic location in the search bar to quickly navigate to an area of interest. Zoom in and out of the map using the “+” and “-” buttons or the scroll-wheel on your mouse, and click-and-drag your cursor to move across the landscape. To view site-specific information (e.g., site name, site ID #, past Thanksgiving Counts, etc.), click within an overwintering site boundary and a popup with details will appear; you will need to be zoomed into the map in order to click on a site. Find additional information on regional coordinators, sensitive sites and site access below the map.

Please note that not all sites shown on this map have public access and that many are privately owned or have sensitive resources. Volunteers may not trespass. When visiting or monitoring a monarch overwintering site, look carefully for markers of private land, such as fences, hedges that define property boundaries, gates whether locked or unlocked, and posted signs prohibiting trespass; respect the landowner’s property rights and do not trespass. If you wander onto private property, please leave immediately when you are asked even if your community science activity is incomplete or you know the activity has been conducted on that property before. If you are uncertain as to whether the property is public or private, assume it is private and stay on the public roads adjoining the property. Private land may only be accessed with permission of the landowner and, for your own protection from trespass claims, the permission should be written.

Sensitive Sites: A few sites are labeled as “Sensitive Sites” and the exact site location is obscured within a larger buffered area due to privacy concerns from the land manager and/or ecological or cultural resource sensitivities at the site. In some cases, a buffered area encompasses multiple sensitive sites.

Regional Coordinators: These individuals work with their communities and the Xerces Society to guide local volunteer effort for the Western Monarch Count. Regional coordinators are great sources of information and oftentimes have years of experience counting monarchs and assessing overwintering habitat in their region. Find your regional coordinator!

Contact Us: Do you know about a site that’s not included on the map? Do you want additional information about a particular site? Email our team at [email protected].