[Gdal-dev] help with adding a projection definition

[TC Haddad]

I'd like to use gdalwarp to reproject some large geotiffs, but
apparently my projection of choice EPSG:4495 is not recognized by
gdal.

On a previous machine I had to edit an old version of proj4 to take
this EPSG code, and was successful at that time. The parameters were
as follows:

# NAD83 / Oregon Lambert (Intl ft)
<4495> +proj=lcc +lat_1=43 +lat_2=45.5 +lat_0=41.75 +lon_0=-120.5
+x_0=400000.00000 +y_0=0 +ellps=GRS80 +datum=NAD83 +to_meter=0.3048
no_defs <>

I'd like to do the same again, but I can't figure out where gdal is
getting it's projection definitions from... what file name should I be
looking for?

My situation is FWtools 1.0.0b2 installed on WinXP sp2

thanks for any help,

Tanya