Ogish was scorched pretty good, I paddled the length of it fall 08, you will have a tough time finding a site you can hang 8 hammocks. I'd be surprised if you could find a site to hang 4, especially the east end.Not much survived the fire. I wanted nothing to do with the place and paddled through. Alpine would be a better choice, many campsites were spared or Knife which was missed by the fire. Forget Jasper too.

On the plus side I don't think you'll have much competition for campsites on Ogi

I plan to go to Ogish in mid-May.  I've been looking at the area on Google Maps, you can see where the forest fire was, and the hottest burned areas show lots of white boulder tops. 
I also thought it was interesting to look at Cache Bay, that particular frame looks like it was taken just before spring ice-out.  You can see that a northwest wind has pushed the ice floe away from the shore to the southeast and the areas that opened earlier where the water current runs.

there are four island campsites on Ogish,  the two west most would be unsuitable, 785 which is the first island after passing through a narrows which divides the lake may be suitable if it escaped the burn (I don't recall) there are only two campsites on the NW side of the lake which mostly escaped the fire, most campsites are on the SE side which were completely torched. Presently, the trees are about 6' tall max (aspen, birch)
here are some pics of Ogish in fall after the burn:
the portage leaving Ogi to Jasper
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scorched earth:
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typical lakeshore:
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what it looks like August 2010
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