North Cascades National Park Service Complex
Wilderness Statistics 1993-2000
National Park Service
U.S. Department of the Interior 		NPS logo


Stephen Mather Wilderness
Statistical Summary - 1993-2000

The following summarizes wilderness management statistics for 1993-2000.

Patrol Data Summary

Year2000 19991998 19971996 19951994 1993
Patrol Reports 155122157 143
151 110128
Rangers 211817 18

Commissioned Rangers 554 45

Trail Segments 443535 35
37 3232
Cross Country Zones 19615 24
31 3232
Patrol Hours 217612692911 2282
3340 37013561
Patrol Miles 243712192926 2357
3351 36371470
# of Day Hiker Groups 10686562847 1737
* **
# of Day Hikers 246817177401 4539
* **
Average Day Hiker Party Size 2.32.6* *
* **
# of Overnight Hiker Groups 973506* *
* **
# of Overnight Hikers 27891591* *
* **
Average Overnight Hiker Party Size 2.93.1* *
* **
Average Hiker Party Size 2.62.82.3 2.6
* **
% of Day Hiker Groups to All Hiker Groups 52.3%56.5%




% of Day Hikers to All Hikers 46.9%51.9%




# of Hiking Groups in Violation 14666229 116
* **
% of Hiking Groups in Violation 7.2%5.7%8.0% 6.7%
* **
# of Day Stock Groups 41411 18
* **
# of Day Stock Users 121728 50
* **
# of Day Stock Animals 302359 90
* **
Average Day Stock Party Size 3.01.2* *
* **
Average Day Stock Animal Party Size 7.51.6* *
* **
# of Overnight Stock Groups 118* *
* **
# of Overnight Stock Users 3961* *
* **
# of Overnight Stock Animals 5863* *
* **
Average Overnight Stock Party Size 3.57.6* *
* **
Average Overnight Stock Animal Party Size 5.37.9* *
* **
Average Stock Party Size (People) 3.43.52.5 2.8
* **
Average Stock Party Size (Animals) 5.93.95.4 5.0
* **
Average Stock Party Size (pairs of eyes) 9.37.57.9 7.8
* **
% of Day Stock Groups to All Stock Groups 26.7%63.6%




% of Day Stock Users to All Stock Users 23.5%21.8%




# of Stock Groups in Violation 414 6
* **
% of Stock Groups in Violation 26.7%4.5%36.4% 33.3%
* **
Total Day Groups 1072670* *
* **
Total Day Visitors 24801734* *
* **
Total Day Party Size 2.32.6* *
* **
Total Overnight Groups 984514* *
* **
Total Overnight Visitors 28281652* *
* **
Total Overnight Party Size 2.93.2* *
* **
Total Hiking Groups 20411162* *
* **
Total Hikers 52573308* *
* **
Total Hiking Party Size 2.62.8* *
* **
Total Stock Groups 1522* *
* **
Total Stock Users 5178* *
* **
Total Stock Party Size 3.43.5* *
* **
Total Groups 205611842858 1755
3797 38942188
Groups Encountered Per Hour 0.940.930.98 0.77
1.14 1.050.61
Groups Encountered Per Mile 0.840.970.98 0.74
1.13 1.071.49
Total Visitors 530833867429 4589
8863 98365469
Average Party Size 2.62.92.6 2.6
2.3 2.52.5
Visitors Encountered Per Hour 2.442.672.55 2.01
2.65 2.661.54
Visitors Encountered Per Mile 2.182.782.54 1.95
2.64 2.703.72
All Groups in Violation 15067233 122
162 192171
% of All Groups in Violation 7.3%5.7%8.2% 7.0%
4.3% 4.9%7.8%
Groups in Violation Per Hour 0.070.050.08 0.05
0.05 0.050.05
Groups in Violation Per Mile 0.060.050.08 0.05
0.05 0.050.12

Violations, by Type

Year2000 19991998 19971996 19951994 1993
Pets 23622 27
31 3326
Party Size 604 6
2 45
Permits 443777 52
109 11390
Camping 16422 23
42 5923
Fires 334 1
10 105
Littering 512 5
5 1212
Resources 331099 16
16 5824
Bicycles 034 0
10 52
Groups with Proper Food Storage 265128298 133
224 222180
Groups w/Improper Food Storage 211123 36
36 3730
% of Groups w/Proper Food Storage 92.7%92.1%92.8% 78.7%
86.2% 85.7%85.7%
Violation Notices Issued 273741

32 171
# of Complaints 211857 34
* **
# of Compliments 41866 61
* **
% of Compliments to Complaints 66.1%30.8%53.7% 64.2%
80.0% 83.3%63.6%
Vandalism Incidents 11227 10
0 913
Vandalism Incidents Per Hour 0.010.020.00 0.00
0.00 0.000.01
Vandalism Incidents Per Mile 0.000.020.00 0.00
0.00 0.000.01
Occurrences of TP/Feces 16467123 97
* **
Occurrences of TP/Feces Per Hour 0.080.050.04 0.04
* **
Occurrences of TP/Feces Per Mile 0.070.050.04 0.04
0.04 0.020.04
# of Illegal Fire Rings 671753 74
* **
Illegal Fire Rings Per Hour 0.030.010.02 0.03
* **
Illegal Fire Rings Per Mile 0.030.010.02 0.03
0.02 0.010.02
Pieces of Litter 18127442488 2795
* **
Pieces of Litter Per Hour 0.830.590.85 1.22
* **
Pieces of Litter Per Mile 0.740.610.85 1.19
0.77 0.530.50
# of Aircraft Heard 169514992458 1524
* **
Aircraft Heard Per Hour 0.781.180.84 0.67
0.42 0.320.29
Minutes of Aircraft Noise Heard 193217933649 1810
* **
% of Patrol Time Aircraft Noise Heard 1.5%2.4%2.1% 1.3%
0.9% 0.5%0.5%

noca/wilderness/1993-2000.htm
Last Updated: 31-Oct-1998