1 PDF computer file (36 pages plus 2 maps, includes handwritten corrections)Contract No. PX 6000-7-0...
1 PDF computer file (32 pages; 1 chart, 3 maps)National Park Service Contract CX 0001-2-003
Lichens have been shown to be useful bioindicators for determining levels of nitrogen deposition rel...
1 PDF computer file (13 pages plus 21 pages of maps includes handwritten corrections)National Park S...
28 pages plus 13 pages of maps.National Park Service, Contract CX 0001-2-0034 and USDI-PX6000-7-073
1 PDF computer file (25 pages; 1 picture plus 2 pages of tabular data and 14 pages of maps)National ...
1 PDF computer file (24 pages plus 5 pages of maps; 2 pages of tabular data; includes handwritten no...
1 PDF computer file (Working copy, includes handwritten corrections; 22 pages; 1 picture plus 2 page...
1 PDF computer file (39 pages plus 7 maps, 2 pages of tabular data)U.S. Forest Service Contract USD...
1 PDF computer file (6 pages plus 3 pages of tabular data)National Park Service Contract CX 0001-2-...
1 PDF computer file (Working copy, includes handwritten corrections, 22 pages plus 2 pages tabular d...
1 PDF computer file (31 pages)Many lichen species are very sensitive to some air pollutants and and ...
24 pages; photographsNational Park Service, Southwest Region Under Contract PX7029-0-033
1 PDF computer file (Working copy, includes handwritten corrections; 22 pages plus 1 page of tabular...
1 PDF computer file (25 pages plus 8 pages of maps and 2 pages of tabular data)This study of the lic...
1 PDF computer file (36 pages plus 2 maps, includes handwritten corrections)Contract No. PX 6000-7-0...
1 PDF computer file (32 pages; 1 chart, 3 maps)National Park Service Contract CX 0001-2-003
Lichens have been shown to be useful bioindicators for determining levels of nitrogen deposition rel...
1 PDF computer file (13 pages plus 21 pages of maps includes handwritten corrections)National Park S...
28 pages plus 13 pages of maps.National Park Service, Contract CX 0001-2-0034 and USDI-PX6000-7-073
1 PDF computer file (25 pages; 1 picture plus 2 pages of tabular data and 14 pages of maps)National ...
1 PDF computer file (24 pages plus 5 pages of maps; 2 pages of tabular data; includes handwritten no...
1 PDF computer file (Working copy, includes handwritten corrections; 22 pages; 1 picture plus 2 page...
1 PDF computer file (39 pages plus 7 maps, 2 pages of tabular data)U.S. Forest Service Contract USD...
1 PDF computer file (6 pages plus 3 pages of tabular data)National Park Service Contract CX 0001-2-...
1 PDF computer file (Working copy, includes handwritten corrections, 22 pages plus 2 pages tabular d...
1 PDF computer file (31 pages)Many lichen species are very sensitive to some air pollutants and and ...
24 pages; photographsNational Park Service, Southwest Region Under Contract PX7029-0-033
1 PDF computer file (Working copy, includes handwritten corrections; 22 pages plus 1 page of tabular...
1 PDF computer file (25 pages plus 8 pages of maps and 2 pages of tabular data)This study of the lic...
1 PDF computer file (36 pages plus 2 maps, includes handwritten corrections)Contract No. PX 6000-7-0...
1 PDF computer file (32 pages; 1 chart, 3 maps)National Park Service Contract CX 0001-2-003
Lichens have been shown to be useful bioindicators for determining levels of nitrogen deposition rel...