the sampled areas an effort was made to include some relatively
inaccessible sites as well as those that border urban areas. The
objective of the study was to measure the recreational value of the
total basin so that by choosing some remote areas which are part of
the total basin, a better picture of the type and amount of outdoor
recreation that takes place within the Basin will be obtained.
Each access point to the selected lakes was considered as a site
for interviews of outdoor recreationists. The access points were
sites where public access was available and included fish camps, boat
ramps, and campgrounds that had or furnished access to the selected
lakes.
Sample Size
In order to determine the sample size that will give statistically
reliable estimates of the variables to be estimated, the amount of error
that could be tolerated in the sample estimates was ascertained. The
average length of stay per person, n-, where n is the number of persons in
the recreation group, was used to determine the sample size. It
is believed that this was the most important variable and that, by
satisfying the size requirement for this variable, the required precision
for the study would be obtained.
The average number of recreation days per visit is multiplied by
N, the total number of visits to the recreation site, in order to
determine the total number of recreation days. The estimate of size
of the sample depends on the error that can be tolerated, the total
number of people who use the recreation area in question, the average