standard trip description: name, address, party size, date and time in, planned date 

 and time out, number of pack and saddle animals, whether an outfitter or guide was 

 used, number of people planning certain activities, the numbers of the "compartments" 

 in which they planned to travel, and locations where they planned to camp if they were 

 staying overnight. The registration card was accompanied by a folded map showing 27 

 numbered "travel compartments." The compartments were based on trail patterns, usually 

 conforming to drainage basins. The lower and upper halves of drainages were generally 

 divided into separate compartments. 



Registration cards were collected on each sampling day and stapled to corresponding 

 interview forms for punching. Registration boxes were serviced at least once each week, 

 except those in the mountain passes, which were serviced either two or three times 

 during the study. 



Traffic Counters 



Conventional nonprinting pneumatic traffic counters were installed on the access 

 roads to the two most used trails: Glacier Lake (number 1 on fig. 7), and Cold Lake 

 (number 2 on fig. 7). A pressure-pad adaptation of a similar traffic counter was 

 installed on the Glacier Lake trail. Four prototype ultrasonic beam trail traffic 

 counters were installed: two on the Glacier Lake trail; one on the Cold Lake Trail; 

 and one on Fatty Creek trail (number 3 on fig. 7), which was the next most heavily 

 used trail. Counters were read three times each day when the location was sampled, 

 and every third or fourth day at other times. 



13 



