Call Number (LC) Title Results
I 29.2:B 48c Environmental assessment, proposed plan of operations for bentonite mining, American Colloid Company, Bighorn Canyon National Recreation Area, Montana-Wyoming. 1
I 29.2:B 48h Environmental assessment, sewage disposal system, Big Hole National Battlefield, Montana. 1
I 29.2:B 52 Worldwide conservation : proceedings of the symposium on biosphere reserves / 1
I 29.2:B 52/3 Biological diversity : resource topics for parklands. 1
I 29.2:B 52/4 Battlefield biodiversity / 1
I 29.2:B 53/10 Full species list of birds. 1
I 29.2:B 53/13 Bird species checklist : National Resources Inventory and Monitoring Program / 1
I 29.2:B 53c Check-list of the birds of the national parks. 1
I 29.2:B 54 Biscayne National Park, Florida. 1
I 29.2:B 54/2 Ecological targets for Western Biscayne National Park 1
I 29.2:B 54e Utility study for Elliot Key, Biscayne National Monument, Florida / 1
I 29.2:B 56/2 Blackstone River corridor study : conservation options : draft. 1
I 29.2:B 56/3 Statement for management : Black Canyon of the Gunnison National Monument / 1
I 29.2:B 56/4 Resource/boundary evaluation for lands adjacent to Black Canyon of the Gunnison National Monument, Colorado. 1
I 29.2:B 56/5 Blackstone River Valley : Blackstone River Valley National Heritage Corridor, Massachusetts/Rhode Island. 1
I 29.2:B 56/6 Cultural heritage and land management plan for the Blackstone River Valley National Heritage Corridor 1
I 29.2:B 56/7  
I 29.2:B 56/8 Black Canyon of the Gunnison National Park : south rim hiking trails. 1
I 29.2:B 56/9 Black Canyon of the Gunnison National Park : hiking the inner-canyon. 1
I 29.2:B 56/11/2021 Beyond the brink of time: a walking guide to the Chasm view nature trail, 2021. 1