Appendix 1: Site data									
Sample	Longitude (°E)	Latitude (°S)	Latitude (effective)1	Altitude (m)	scaling factor (nucleons)2	scaling factor (muons)2	Thickness (cm) (correction)3	Horizon correction	
Blue Lake: Longitudinal ridge									
BLL-014	148.33	36.41	35.57	1880	3.887/3.813	2.100/2.080	1.8 (0.9852)	0.9995	
Striated surface									
BLS-001	148.33	36.42	36.26	1860	3.834/3.820	2.083/2.079	2.5 (0.9796)	0.9995	
BL-IV moraine									
BLI-001	148.33	36.42	35.9	1850	3.807/3.762	2.074/2.062	5 (0.9597)	0.9995	
BLI-002	148.33	36.42	35.9	1850	3.807/3.762	2.074/2.062	5 (0.9597)	0.9995	
BLI-003	148.33	36.42	35.9	1850	3.807/3.762	2.074/2.062	4 (0.9676)	0.9995	
BL-III moraine									
BLH-008	148.33	36.42	36.4	1860	3.834/3.832	2.083/2.082	5 (0.9597)	0.9995	
BLH-009	148.33	36.42	36.4	1860	3.834/3.832	2.083/2.082	5 (0.9597)	0.9995	
BLD-013	148.33	36.42	36.4	1840	3.781/3.779	2.066/2.065	4 (0.9676)	0.9995	
BL-II moraine									
BLHO-010	148.33	36.42	38.55	1860	3.834/4.02	2.083/2.132	1.7 (0.9861)	0.9995	
BLHO-011	148.33	36.42	38.55	1850	3.807/3.991	2.074/2.123	5.5 (0.9558)	0.9995	
BLHO-012	148.33	36.42	38.55	1840	3.781/3.964	2.066/2.115	3.5 (0.9716)	0.9995	
BL-I moraine									
BLO-001	148.33	36.42	40.44	1780	3.626/3.947	2.015/2.103	5 (0.9597)	0.9995	
BLO-002	148.33	36.42	41.34	1780	3.626/4.008	2.015/2.119	5 (0.9597)	0.9995	
BLO-003	148.33	36.42	39.75	1780	3.626/4.008	2.015/2.119	4 (0.9676)	0.9995	
BL-I boulder field									
BLB-001	148.33	36.42	41.34	1750	3.550/3.923	1.990/2.093	3 (0.9756)	0.9995	
BLB-002	148.33	36.42	41.34	1750	3.550/3.923	1.990/2.093	5 (0.9597)	0.9995	
BLB-003	148.33	36.42	41.34	1750	3.550/3.923	1.990/2.093	3 (0.9756)	0.9995	
Helm's Moraine									
HLM-015	148.33	36.41	36.33	2010	4.252/4.243	2.215/2.213	1.8 (0.9852)	1	
HLM-016	148.33	36.41	34.88	2010	4.252/4.101	2.215/2.177	2.8 (0.9772)	1	
Lake Cootapatamba: LC-II moraine									
LCI-001	148.27	36.47	35.9	2050	4.374/4.317	2.252/2.238	1.5 (0.9877)	0.9977	
LCI-002	148.27	36.47	35.9	2050	4.374/4.317	2.252/2.238	2 (0.9836)	0.9959	
LCI-004	148.27	36.47	35.9	2050	4.374/4.317	2.252/2.238	3 (0.9756)	0.9959	
LC-I moraine									
LCO-006	148.27	36.47	36.15	2020	4.286/4.254	2.225/2.217	1.8 (0.9852)	0.9995	
LCO-007	148.27	36.47	36.15	2020	4.286/4.254	2.225/2.217	2 (0.9836)	0.9991	
Merritts Creek									
MCK-001	148.3	36.47	42.33	1950	4.085/4.599	2.163/2.293	3.5 (0.9716)	1	
MCK-003	148.3	36.47	42.33	1950	4.085/4.599	2.163/2.293	3.5 (0.9716)	1	
									
1. Geomagnetic latitude averaged over the exposure time.									
"2. Altitude/latitude scaling factors based on those of Lal (1991), but with reduced muon production, as discussed in the text. "									
"First number for geographic latitude, second number for effective geomagnetic latitude. "									
3.  r = 2.8 g.cm-3; L = 160 g.cm-2