The ornamental design for treestand climbing stick holder, as shown and described.
FIG. 1 is a perspective view of the treestand climbing stick holder on a treestand embodying the new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a right side view thereof, the left side being a mirror image thereof;
FIG. 6 is a rear view thereof; and,
FIG. 7 is a front view thereof.
The tree stand shown in broken lines in FIG. 1 is included for the purpose of illustrating environment and forms no part of the claimed design. The dash-dot broken lines immediately adjacent the shaded areas on the treestand climbing stick holder in FIGS. 1-7 represent boundaries of the claim and form no part of the claimed design. The treestand climbing stick holder is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.