
Featured Preserve
COUNTY: Johnson | ACRES: 300 | NEAREST CITY: Trafalgar
Trails are open in Betley Woods at Glacier’s End, where you can experience dramatic terrain and (soon) a spring ephemeral show. This preserve offers unparalleled natural beauty in a highly biodiverse area. Ice Age glaciers stopped their southward march here, sculpting the land.
Species Protected
The land we protect stays protected forever, providing permanent habitat for countless native plants and wildlife. The numbers below represent native species we’ve documented on these lands. What more will we find, with your support?
810
Native Plants
35
Mammals
234
Birds
38
Herps
Help us save even more wildlife. Your donation gives safe harbor to innumerable species, including the mink shown here. More than 70 of the species we protect are rare, threatened, or endangered. Your generosity gives them a fighting chance.
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Current News
January 8, 2026
We knew at the outset that our goal would require everyone to dig deep. The Efroymson Family Fund offered a generous $350,000 matching challenge, our largest year-end challenge to date. It was a big stretch.





