Setters Notes – Prescott events 2017-05-13

The Weather forecast is looking good for the weekend, with daytime highs in the low 70’s, and low 60’s for the night-o.

The terrain is mostly pine forest, with some brushy areas on hilltops or southern exposures. Areas that have thick brush are (crudely) marked on the maps. There is water flowing in the major creeks, although they are easy to cross without getting wet. The Big Juniper is an older map, originally developed in 2005. Due to logging and forest thinning, some vegetation markings may be obsolete, and some trails may be faded. The Spence Creek base map is the same as what was introduced in 2016. The White Rock (Night-O) map has been used for Bike-O’s, but more terrain detail has been added this year.

If you are new to orienteering and are not familiar with all the map symbols, you may want to look at the Spence Creek map tips that we created for Junior ROTC cadets.

All maps have 40 foot elevation contours. To add more detail, the blue “Shallow water channel” is used extensively to show shallow reentrants that otherwise could not be detected from the elevation contours.

There are many boulders in this area. Generally, a boulder will not be mapped unless it is at least 2 meters high. For boulders 3 meters or higher, the “large boulder” symbol, or black “area symbol” is used. More mapping details are here.

There is no water on any of the Saturday or Night-O courses, and there is only one water stop on the score-o course. Please take enough water with you to last ~ 2 hours on the course. Note that for the Spence Creek Score-O on Sunday, there is a ~200 meter walk from the parking area to the registration/start area. Take everything that you will need when you leave the parking area.

Course Summary

Course Type Map scale Length (km) Elevation (m) Equivalent distance (km) Number of Controls Winning Time @ 8 min/km (min/hr:min)
Clinic Classic 1:5k 1.0 24 1.2 7 N/A
Sprint Classic 1:7.5k 2.5 85 3.4 12 27 min / 0:26 hr:min
Short Orange Classic 1:7.5k 3.1 152 4.6 13 37 min / 0:37 hr:min
Night-O Loop 1 Classic 1:5k 1.7 55 2.2 6 18 min / 0:17 hr:min
Night-O Loop 2 Classic 1:5k 2.3 49 2.8 7 22 min / 0:22 hr:min
Night-O Loop 3 Classic 1:5k 2.4 85 3.3 8 26 min / 0:26 hr:min
Spence Creek 2-hr Score-O 1:10k 8.1 280 10.9 24 87 min / 1:27 hr:min