Description:
On the summit of Grassy Hill, about 1000 feet above sea level, is a large sandstone cairn with plaque. 
The cairn can be reached either on foot, or by car via Hope Street.
There is another plaque on a large granite rock on the foreshore, immediately below Grassy Hill, (see file “Foreshore, Cooktown, Queensland, Australia”.

History:
The cairn and plaque were placed on the summit in 1970 to commemorate the bi-centenary of Cook’s visit, by the Royal Australian Navy.

Inscription:
Plaque on the front of the cairn:

DEDICATED TO
LIEUTENANT JAMES COOK R.N
THE CREW OF ENDEAVOUR
AND TO ALL MARINERS

ROYAL AUSTRALIAN NAVY

GPS Coordinates: -15.460556,  145.255079

References:
Cook’s Log, page 1678, vol. 22, no. 4 (1999)
Cook’s Log, page 15, vol. 37, no. 1 (2014)
Cook’s Log, page 31, vol. 37, no. 2 (2014)
Cook’s Log, page 15, vol. 37, no. 4 (2014)
Endeavour Lines, page 11, no. 44 (Apr. 2005)
Website: http://www.cooktownandcapeyork.com/go/cooktown/grassyhillphotos/cairn.jpg
Website: http://monumentaustralia.org.au/themes/landscape/discovery/display/91191-lieutenant-james-cook
Website: https://en.wikipedia.org/wiki/Grassy_Hill_Light