Coronavirus (COVID-19): Calvert Nature Society will follow recommendations made by County, State & National guidelines.Dec. 10, 2020: We have new policies. Please see Calvert Nature Society's COVID waiver for our policies for all in-person activities
Calvert County Natural Resources Park Hours page for park hours, closures and other updates.
Calvert County's COVID-19 Resource Center
NOTICE: our online payment system has been restored.
For detailed maps of the 39 Calvert County Blocks used in this survey, click on the links below.
The maps are pdf files.