From the picture I am guessing the gps is the old Yellow eTrex and not the new Yellow eTrex H with high sensitivity receiver.
https://buy.garmin.com/shop/shop.do?cID=144I was first truly introduced to handheld gps units by the old Yellow gps, first in the backcountry of Idaho, and later in SE Utah. Heavy tree canopy was not an issue in Utah, and open locations could be found in Idaho. If you are buying a stand-alone gps unit I recommend you go for the “H” series with the high sensitivity receiver.
A large number of members have expressed their disappointment when using early gps units under canopy. Older models are performing better today because of additional satellites in the sky, and updated software packages in some satellites. At one time I had an older model blue eTrex Legend that shared the same receiver as the original yellow eTrex. I got a lot of use out of it, but the reception does not come close to the high sensitivity models. A gps is of little value if you are not receiving adequate satellite signals.
In this case I would let the value of the scope be the driving force and not the gps. Last year I bought a Burris FFII package with a pair of binoculars. During the same sale another brand scope packaged with binoculars was being sold for the same price. I let the scope determined my purchase not the included binoculars. In fact the binoculars are still setting in the box.
