```r
SEalaska.topo
```

```
## class       : RasterBrick 
## dimensions  : 2469, 2152, 5313288, 4  (nrow, ncol, ncell, nlayers)
## resolution  : 0.003717472, 0.001620089  (x, y)
## extent      : -138, -130, 56, 60  (xmin, xmax, ymin, ymax)
## coord. ref. : +proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0 
## data source : in memory
## names       : basemap.1, basemap.2, basemap.3, basemap.4 
## min values  :         0,         0,         0,       255 
## max values  :       255,       255,       248,       255
```