A06-Windmill2024Topo_0001.pdf

These documents are geographic information system (GIS) maps depicting golden bamboo invasion at Windmill Point within Colonial National Historical Park in Yorktown, Virginia. The maps compare invasive bamboo coverage across two time periods: 2014 and 2023.

The 2014 map shows bamboo coverage of 0.5 acres marked with orange diagonal hatching on federal land (Fee), located near Water Street, Mathews Street, Pulaski Street, and Ambler Street. The 2023 map indicates a slight increase in bamboo coverage to 0.51 acres, displayed with a blue boundary overlay on a 2-foot topographic base map. Both maps were produced by the National Park Service, U.S. Department of the Interior, specifically the COLO Resource Division GIS unit. The maps utilize data sourced from the COLO Invasive dataset and ESRI imagery, with the 2023 map created in April-November 2015 and the 2014 map dated November 24, 2015. The documents serve as baseline documentation for tracking invasive species distribution within federal park boundaries and do not contain solicitation information, contract requirements, pricing terms, or procurement details relevant to federal contracting opportunities.