The National Center for Earth-surface Dynamics (NCED) hosts many of the GIS coverages:

LiDAR has been flown multiple times over the Reserve area by the National Center for Airborne Laser Mapping (NCALM) and is housed at Open Topography.org.

2004 LiDAR. Left processed into Bare-earth DEM. Right processed into Canopy elevation and Tree height. Darker green are taller trees.
2004 LiDAR. Left processed into Bare-earth DEM. Right processed into Canopy elevation and Tree height. Darker green are taller trees.