10-meter DEMs as big BIL files

Now we have only zone 10. Zone 11 will follow.

bytes date name
25804502 Dec 26 16:41 capeflattery.zip
304254557 Dec 26 16:48 concrete.zip
42019302 Dec 26 16:49 copalis.zip
1863540 Dec 26 16:58 disappoint.zip
199969682 Dec 26 17:03 hoquiam.zip
211055632 Dec 26 16:53 seattle.zip
116392948 Dec 26 17:11 thedalles.zip
110600364 Dec 26 17:09 vancouver.zip
88471923 Dec 26 16:43 victoria.zip
303291983 Dec 26 16:58 wenatchee.zip
288747906 Dec 26 17:07 yakima.zip