Hunter Point - USHUN001 Additional Site Information Emily K. Heyerdahl, Penelope Morgan, James P. Riser II Dating Method: Crossdated Sample Storage Location: USDA Forest Service, Rocky Mountain Research Station Fire Sciences Lab 5775 West Highway 10 Missoula, MT 59808 stored by Emily K. Heyerdahl (eheyerdahl@fs.fed.us, 406-829-6939) Reference: Heyerdahl, E.K., P. Morgan, and J.P. Riser II. 2008. Multi-season climate synchronized historical fires in dry forests (1650-1900), Northern Rockies, USA. Ecology 89(3): 705-716. Heyerdahl, Emily K.; Morgan, Penelope; Riser, James P., II. 2008. Crossdated fire histories (1650-1900) from ponderosa pine-dominated forests of Idaho and western Montana. Gen. Tech. Rep. RMRS-GTR-214WWW. Fort Collins, CO: US Department of Agriculture, Forest Service, Rocky Mountain Research Station. 83 p. Available from TreeSearch: http://www.treesearch.fs.fed.us/ Abstract: This site is part of a broader project to infer the climate drivers of regional fire years in the US northern Rockies, i.e., Idaho and Montana west of the Continental Divide. We needed a multicentury record of widespread fires across the region to meet the objectives of our broader study and therefore we targeted sites historically dominated or co-dominated by ponderosa pine that historically sustained frequent surface fires. Tree locations were determined using handheld global position system receivers. Injuries in the FHX file include both eroded scars (i.e., ones for which much or all of the overlapping, curled woundwood rings were destroyed by subsequent fires or rot) and abrupt changes in the width of annual rings that were synchronous with fire scars on other trees at this sites. We generally assigned ring-boundary scars to the preceding calendar year at this site. However, for one fire, scars occurred in the earlywood of most trees but on the preceding ring boundary of some. We inferred that the scars in both positions were created by a single fire burning early in the growing season and therefore re-assigned the ring-boundary scars to the following calendar year, in other words, the same year as the earlywood scars. These changes are listed below. Tree,Original_Year,Re-assigned_Year HUN01, 1794, 1795 HUN02, 1794, 1795 HUN04, 1794, 1795 HUN05, 1794, 1795 HUN06, 1794, 1795 HUN08, 1794, 1795 HUN12, 1794, 1795 HUN18, 1794, 1795 HUN20, 1794, 1795 Comments: Samples taken in section 9 located north of junction of forest roads 470 and 474, and between these two roads along small unmarked forest road branching west off road 474. Samples from section 16 (HUN4,5,6,and 9) located between Lake Koocanusa and unmarked access road branching southeast off forest road 470. Samples HUN1, HUN2, HUN3 and HUN12 were Larix occidentalis, the rest were Pinus ponderosa. Individual Sample Information: (tree ID,number of samples dated,number of scars dated,number of injuries dated,species,live?,UTM-E (NAD27, zone 11),UTM-N (NAD27, zone 11),comments) HUN01,2,11,2,Larix occidentalis,log,629827,5416868, HUN02,2,17,0,Larix occidentalis,stump,629764,5416840, HUN03,1,7,0,Larix occidentalis,stump,629764,5416840, HUN04,1,4,1,Pinus ponderosa,stump,629781,5416866, HUN05,2,18,2,Pinus ponderosa,stump,629740,5416978, HUN06,1,24,1,Pinus ponderosa,stump,629729,5416939, HUN07,2,20,2,Pinus ponderosa,log,629729,5417010, HUN08,2,18,4,Pinus ponderosa,stump,629812,5416909,missing outside scar HUN09,1,6,0,Pinus ponderosa,stump,629861,5416782,outer surface is a scar HUN10,2,6,1,Pinus ponderosa,stump,629877,5416716, HUN11,1,8,2,Pinus ponderosa,stump,629896,5416698, HUN12,2,20,2,Larix occidentalis,stump,629862,5416623, HUN13,1,7,1,Pinus ponderosa,stump,629909,5416644, HUN14,2,13,3,Pinus ponderosa,stump,629929,5416819, HUN15,1,11,0,Pinus ponderosa,live,629726,5416338, HUN16,0,0,0,Larix occidentalis,snag,629708,5416375, HUN17,2,10,2,Pinus ponderosa,stump,629671,5416477,missing outside scar HUN18,1,9,3,Pinus ponderosa,live,629752,5416470, HUN19,2,21,2,Pinus ponderosa,snag,629752,5416251,missing outside scar HUN20,1,9,1,Pinus ponderosa,live,629741,5415960, HUN21,1,10,0,Pinus ponderosa,live,629724,5415785, HUN22,1,13,1,Pinus ponderosa,live,629587,5416423, HUN23,1,8,2,Pinus ponderosa,live,630038,5416380, HUN24,1,4,0,Pinus ponderosa,snag,629728,5415855, HUN25,1,7,0,Pinus ponderosa,snag,629746,5415848, HUN26,1,9,0,Pinus ponderosa,stump,629808,5416263, Fire History Graphs: Fire History Graphs illustrate specific years when fires occurred and how many trees were scarred. They are available in both PDF and PNG formats. The graphs consist of 2 parts, both of which show the X axis (time line) at the bottom with the earliest year of information on the left and the latest on the right. The Fire Index Plot is the topmost plot, and shows two variables: sample depth (the number of recording trees in each year) as a blue line along the left Y axis, compared with the percent trees scarred shown as gray bars along the right Y axis. Below, the Fire Chronology Plot consists of horizontal lines representing injuries by year on individual sampled trees. Symbols are overlain that denote the years containing the dendrochronologically-dated fire scars or injuries. The sample ID of each tree is displayed to the right of each line. The Composite Axis below represents the composite information from all individual series. The symbols used to represent the fire scars or injuries, and the filters used to determine the composite information, are shown in the legend. These graphs were created using the Fire History Analysis and Exploration System (FHAES). See http://frames.nbii.gov/fhaes/ for more information.